Andrei Kavaleuski

Andrei Kovalevsky (Kavaleuski) (AK) is a tenured Principal Researcher at CICECO - Aveiro Institute of Materials / DEMaC, University of Aveiro, Portugal. He is a member of the DEMaC Council, a representative of the University of Aveiro in the Sustainable Energy sector within the CRUSOE network, and was a coordinator of CICECO´s research line “Energy” in 2021-2024. After completing his PhD in Physical Chemistry in 2002, he was a post-doctoral researcher at the University of Aveiro (Portugal) and Flemish Institute for Technological Research (VITO, Belgium), focusing on materials for ceramic oxygen-permeable membranes and SOFC. These efforts are continued in his present research group, together with the R&D activities in thermoelectric conversion, green steelmaking, the development of sustainable and cost-effective MXene-based composite materials for electrochemical, photocatalytic and sensing applications, and engineering of porous ceramics for catalytic and separation applications.

AK co-authored ~200 SCI papers (h-index of 40 and ~5900 citations (Scopus), h-index of 43 with ~7500 citations (Google Scholar), as of 24.02.2026). He contributed to 5 book chapters and participated in ~30 R&D projects, supported by European Commission and national funding agencies. In the last 5 years, he coordinated 5 R&D projects (3 national as a PI and 2 European: as a coordinator and as a local PI) with a total funding of ~1.2 M€. From 2021 to 2026, AK showcased the accomplishments of his research group in 2 plenary and 14 keynote/invited talks at primarily international conferences and workshops. Currently, AK´s research group includes 1 post-doctoral researcher, 4 PhD students and 1 MSc student. In 2023-2026, 4 PhD and 4 MSc theses under his (co)supervision were defended.

AK contributes to the educational process at the University of Aveiro by teaching theoretical and theoretical-practical courses within 1st cycle (as co-lecturer) and a Master degree in Materials Engineering (as coordinator). AK is an active referee for ~ 80 SCI journals, including contributions to Chemical Society Reviews, Advanced Materials, Advanced Functional Materials, Nano Energy, Chemistry of Materials and Journal of Materials Chemistry A. In 2019, he was awarded by Publons as a top peer reviewer 2019 in cross-field. In 2020-2024, according to the updated science-wide author databases of standardized citation indicators (Stanford University) AK was among the top 2% most cited researchers in the world. AK serves as an Editorial Board member for Discover Applied Sciences (Springer Nature), Frontiers in Energy Research (Frontiers), Solids (MDPI), PhysChem (MDPI), participates in the Advisory board of the Heliyon journal (Cell Press) and evaluate books proposals for Elsevier. AK regularly contributes to the evaluation (referee and/or a member of evaluation panel) of the project proposals for the M-ERA.NET, Research Council of Norway, ACS Petroleum Research Fund, Israel Science Foundation, National Science Centre (Poland), Technology Agency of the Czech Republic, Slovak Academy of Sciences, German Research Foundation (DFG) and National Innovation Agency (ANI, Portugal). AK have been involved as a member of the organisation committee at the 19th Meeting of the Portuguese Electrochemical Society (2014), CICECO Jornadas (2019 and 2025) and acted as a Convener of a dedicated symposium on TE materials at the prestigious CIMTEC conference (2022). In 2024, he was a co-chair of a dedicated symposium on thermoelectrics at the EMRS 2024 Spring Meeting. AK is a co-inventor in two EPO and two Portuguese patent applications filed. He is actively engaged in promoting science to various audiences, emphasising its societal relevance.

1. High-temperature thermoelectric harvesting of waste heat and renewable energy.

 Rapid development of high-temperature thermoelectric conversion is of special importance for green energy sector, in particular, by enabling self-sufficient technologies for mobile sectors or remote applications, and hybrid solutions involving thermoelectric modules. Among those applications, which are now considered most prospective, some can be highlighted, as conversion of the concentrated solar radiation, combination with photovoltaic systems and heat recovery from automotive exhaust. A broad impact is expected from the use of oxide-based thermoelectrics, provided by their natural abundance, environmental benefits and capability of operating at high temperatures, as an alternative to traditional Bi₂Te₃, Bi₂Se₃, PbTe –based thermoelectrics.

The research is mainly focused at oxide thermoelectric materials including donor-substituted strontium titanate-based materials, ZnO-based composites and various layered cobaltites. The main approaches include:

- Defect chemistry engineering, aimed at deliberate creation of the lattice defects, which result in enhanced phonon scattering and higher mobility of the charge carriers.

- Redox-induced nanostructuring and creation of compositional inhomogeneities (core-shell microstructures) for suppressing the thermal conductivity and faster electronic transport at the grain boundaries.

- Laser floating zone processing for oxide thermoelectrics, in order to create unique micro-/nanostructural features, triggering high thermoelectric performance.

 Key publications:

1. A.V. Kovalevsky*, K.V. Zakharchuk, M.H. Aguirre, W. Xie, S.G. Patrício, N.M. Ferreira, D. Lopes, S.A. Sergiienko, G. Constantinescu, S.M. Mikhalev, A. Weidenkaff, J.R. Frade, Redox engineering of strontium titanate-based thermoelectrics, 2020, J. Mater. Chem. A, vol. 8, p. 7317 (doi: https://doi.org/10.1039/C9TA13824B)

1. K.V. Zakharchuk, M. Widenmeyer, D.O. Alikin, W. Xie, S. Populoh, S.M. Mikhalev, A. Tselev, J.R. Frade, A. Weidenkaff, A.V. Kovalevsky*, A self-forming nanocomposite concept for ZnO-based thermoelectrics, J. Mater. Chem. A, 2018, vol. 6, pp.13386-13396 (https://doi.org/10.1039/C8TA01463A)

2. A.A. Yaremchenko, S. Populoh, S.G. Patrício, J. Macías, P. Thiel, D.P. Fagg, A. Weidenkaff, J.R. Frade, A.V. Kovalevsky*, Boosting thermoelectric performance by controlled defect chemistry engineering in Ta-substituted strontium titanate, Chem. Mater., 2015, vol. 27, pp. 4995-5006. (https://doi.org/10.1021/acs.chemmater.5b01389)

 2. Functional porous cellular ceramics for catalytic and separation applications.

Functional materials with controlled dimensionality and morphology are recognized as an essential part of numerous engineering solutions for energy, food, water and environmental problems. Those possessing large surface areas, tunable pore size, appropriate thermal stability and tailored acid/basic functionalities, allowing modification with catalytically active species, are of particular interest for both technology and fundamental research. Although many catalytic processes and related materials have already been discovered and improved during the last century, still many opportunities exist both for development of new approaches and even for new solutions in mature technologies.

The research is focused on the processing and bulk functionalization of the monolithic cellular ceramics for catalytic and separation applications. The main approaches include:

- Processing of porous cellular ceramics through emulsification of ceramic suspensions.

- Modification of the pores with nanostructured functional materials via hydrothermal treatment.

- In-situ modification of the pores with nanostructured transition metals for catalytic applications.

Key publications:

1. Y.A. Ivanova*, C. Freitas, D.V. Lopes, A.V. Kovalevsky, J.R. Frade, Cellular zirconia ceramics processed by direct emulsification, J. European Ceram. Soc., 2020, vol. 40, pp. 2056-2062 (doi: 10.1016/j.jeurceramsoc.2020.01.005)

2. M. Baptista, A.V. Kovalevsky*, A.R. Sarabando, M.C. Ferro, I. Capela, J.R. Frade, Highly-porous mayenite-based ceramics by combined suspension emulsification and reactive sintering, Mat. Lett., 2019, vol. 237, pp. 41-44 (doi: 10.1016/j.matlet.2018.11.061)

3. E. Lalli, N.M.D. Vitorino, C.A.M. Portugal, J.G. Crespo, C. Boi, J.R. Frade, A.V. Kovalevsky*, Flexible design of cellular Al₂TiO₅ and Al₂TiO₅ – Al₂O₃ composite monoliths by reactive firing, Materials and Design, 2017, vol. 131, pp. 92-101 (doi: 10.1016/j.matdes.2017.06.010)

3. Carbon-lean technologies for metal extraction.

Although classical extractive metallurgy is well-established, and energy consumption per  tonne of produced steel has been reduced by 50% in recent years, this sector is now facing stronger pressure to lower greenhouse gas emissions, and to comply with stricter international regulations. Thus, from a broad environmental perspective, one seeks new strategies for carbon-lean iron extraction, with emphasis on electrolysis.

The research is focused on less common technologies of direct electrochemical reduction of metal oxides and pyroelectrolysis. The main research directions include:

- Demonstration of the concept for iron pyroelectrolysis in magnesium aluminosilicate melts.

- Electrolytic in-situ reduction of iron oxides and ferrospinels in alkaline medium.

 Key publications:

1. D.V. Lopes, Y.A. Ivanova*, A.V. Kovalevsky, A.R. Sarabando, J.R. Frade, M.J. Quina, Electrochemical reduction of hematite-based ceramics in alkaline medium: Challenges in electrode design, Electrochim. Acta, 2019, vol. 327, p. 135060 (doi: 10.1016/j.electacta.2019.135060)

2. J.F. Monteiro, Yu.A. Ivanova*, A.V. Kovalevsky, D.K. Ivanou, J.R. Frade, Reduction of magnetite to metallic iron in strong alkaline medium, Electrochim. Acta, 2016, vol. 193, pp. 284-292. (https://doi.org/10.1016/j.electacta.2016.02.058)

3. N.M. Ferreira, A.V. Kovalevsky*, S.M. Mikhalev, F.M. Costa, J.R. Frade, Prospects and challenges of iron pyroelectrolysis in magnesium aluminosilicate melts near minimum liquidus temperature, Phys. Chem. Chem. Phys., 2015, vol. 17, pp. 9313-9325. (https://doi.org/10.1039/c5cp00858a)

4. Mixed ionic-electronic conductors for high- and intermediate temperature electrochemical applications.

Mixed ionic-electronic conductors (MIECs) have been and continue to be of a strategic interest for various energy conversion applications, chemical production and environmental monitoring. These include fuel cells, oxygen permeation membranes, proton-conducting ceramic membranes, batteries and sensors. In a solid oxide fuel cell (SOFC) concept, the MIEC materials provide an enhancement of oxygen reduction reaction kinetics at the cathode, thus facilitating lower-temperature operation and enabling faster start-up times, improved stability and easier thermal management. The use of MIEC oxygen membranes has attracted much attention due to simplicity in construction and operation of reactors for partial oxidation of hydrocarbon feedstock. A dense MIEC membrane delivers pure oxygen from air to the hydrocarbon feed stream, driven by the gradient in partial pressure of oxygen across the membrane. The flux of oxygen-related defects (oxygen vacancies or interstitials) is compensated by a flux of electronic charge carriers. The aim to realize high oxygen fluxes through such membranes requires both fast surface oxygen exchange and ion diffusion in the bulk, achievable via structural tuning of the MIEC materials and design of the membrane architecture.

The research is focused both on the development of new materials with enhanced ionic transport properties and improved thermochemical stability, and conceptual solutions for membrane design. The main research directions include:

- Various substitution approaches for improving ionic transport, oxygen exchange kinetics, redox stability and suppressing the chemical expansion in perovskite- and K₂NiF₄-type materials.

- Assessment of asymmetric flat and tubular (hollow-fibre) membrane geometries for oxygen separation process.

Key publications:

1. N. Nasani, D. Pukazhselvan, A.V. Kovalevsky, A.L. Shaula, D.P. Fagg*, Conductivity recovery by redox cycling of yttrium doped barium zirconate proton conductors and exsolution of Ni-based sintering additives, J. Power Sources, 2017, vol. 339, pp. 93-102. (https://doi.org/10.1016/j.jpowsour.2016.11.036)

2. A.V. Kovalevsky*, A.A. Yaremchenko, V.A. Kolotygin, A.L. Shaula, V.V. Kharton, F.M.M. Snijkers, A. Buekenhoudt, J.R. Frade, E.N. Naumovich, Processing and oxygen permeation studies of asymmetric multilayer Ba_0.5Sr_0.5Co_0.8Fe_0.2O_3-d membranes, J. Membr. Sci., 2011, vol. 380, pp. 68-80.

(doi: https://doi.org/10.1016/j.memsci.2011.06.034)

3. C. Buysse*, A. Kovalevsky, F. Snijkers, A. Buekenhoudt, S. Mullens, J. Luyten, J. Kretzschmar, S. Lenaerts, Development, performance and stability of sulphur-free, macrovoid-free BSCF capillaries for high temperature oxygen separation from air, J. Membr. Sci., 2011, vol. 372, p. 239-248. (doi: https://doi.org/10.1016/j.memsci.2011.02.011

International:

Prof. A. Weidenkaff, Dr. W. Xie (Materials and Resources, Technical University of Darmstadt Germany)

Prof. A. Sotelo, Prof. M.A. Torres (Aragón Materials Science Institute, University of Zaragoza, Spain)

Prof. E. Rodríguez Castellón (Crystallography and Mineralogy Department, University of Malaga)

Prof. M.H. Aguirre (INA- Instituto de Nanociencia de Aragón, University of Zaragoza, Spain)

Prof. D.A. Macedo (Federal University of Paraíba, Brazil)

Prof. E. Guilmeau (Centre national de la recherche scientifique, Laboratoire de Cristallographie et Sciences des Matériaux, CNRS-CRISMAT, France)

Prof. I. Álvarez Serrano (Inorganic Chemistry Department, Complutense University of Madrid, Spain)

Dr. O. Merkulov, Prof. M. Patrakeev (Institute of Solid State Chemistry, UB RAS, Ekaterinburg, Russian Federation)

Dr. A. Galatanu (National Institute of Materials Physics, Bucharest, Romania)

Prof. C. Boi, Dr. E. Lalli (University of Bologna, Italy)

Dr. A.S. Panfilov (B.Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine, Ukraine)

Portugal:

Prof. J.R. Frade, Dr. A. Yaremchenko (Department of Materials and Ceramics Engineering, CICECO, University of Aveiro)

Dr. N.M. Ferreira, Prof. F.M. Costa, Dr. A. Tselev, (Physics Department, University of Aveiro)

Dr. D.P. Fagg, Dr. S.M. Mikhalev (TEMA-NRD, University of Aveiro)

Prof. J. Crespo, Dr. C. Portugal (LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa)

 Industry:

Bosch Termotecnologia, Portugal (Eng. Luis Monteiro, Eng. Nuno Oliveira)

Arcelormittal Maizieres Research, France (Dr. Hervé Lavelaine de Maubeuge)

Voltalia, Portugal (Dr. J.C. Amador)

As team leader / principal investigator PI / co-PI:

1. “Redox-promoted design of advanced thermoelectrics: a step towards high-temperature applications”, Project POCI-01-0145-FEDER-031875, financed by COMPETE 2020 Program and National Funds through the FCT/MEC and when applicable co-financed by FEDER under the PT2020 Partnership Agreement (2018-2021)

2. “Thermoelectric oxide composites: design through controlled interactions”, Project ID 101003375, Horizon 2020 Marie Skłodowska-Curie Actions (MSCA) – Widening Fellowships (WF), H2020-WF-02-2019, funded by European Commission, Supervisor of the Responsible Researcher (2020-2022).

3. “Development of new methodologies for industrial CO2-free steel production by electrowinning”, Project SIDERWIN DLV-768788-Horizon 2020/SPIRE10, supported by the European Commission (2017-2022), as UA team coordinator.

4. “Scanning probe approaches for characterization of nanoscale thermal conduction to guide synthesis of thermoelectric ceramics”, Project POCI-01-0145-FEDER-032117, financed by COMPETE 2020 Program and National Funds through the FCT/MEC and when applicable co-financed by FEDER under the PT2020 Partnership Agreement (2018-2021), as a Co-PI.

5. “Towards highly-efficient oxide thermoelectrics by structural and defects engineering”, Project 441.00 DAAD, supported by program of bilateral cooperation between FCT and DAAD, Germany (2017-2018).

6. “Oxygen ionic and electronic transport in complex oxides under high gradient of oxygen chemical potential”, Project X04M-131, supported by Belarus Foundation for Fundamental Research (2004-2006).

7. “Synthesis and investigation of novel oxygen-ion conducting solid electrolytes”, Project X97M-029, supported by Belarus Foundation for Fundamental Research (1998-2000).

8. “Investigation of the processes limiting oxygen transport in mixed conducting materials”, Project No. 19981441 from 1998, supported by the Belarusian State University (1998-1999).
________________________________________________________________________________

As team member:

1. "DC-SOFEC: Novel approach to Power-to-Fuel: Comprehensive studies of anodic processes in Direct Carbon Solid Oxide Fuel-assisted Electrolysis Cell", Joint Project 2018/30/M/ST8/00675 with Research Institute of Power Engineering, supported by NCN, Poland (2019-2022).

2. “Novel catalyst concepts for tar-free oxy-steam gasification of biomass”, supported by FCT, Portugal, Project PTDC/CTM-CTM/30661/2017 (2018-2021)

3. “Smart Green Homes – BOSCH”, supported by COMPETE 2020 (Sistema de Incentivos à I&DT), industrial contract, Project POCI-01-0247-FEDER-007678 (2016-2020).

4. “Novel molten carbonate/ceramic composite materials for sustainable energy technologies with CO2 capture and utilization”, supported by European Commission within M-ERA.NET consortium, Project M-ERA-NET2/0009/2016 (2017-2020).

5. “Unitised regenerative fuel cell for efficient renewable energy supply: from materials to device”, supported by FCT/MEC, co-financed by FEDER under the PT2020 Partnership Agreement, Portugal, Project SAICTPAC/0032/2015 (2017-2019).

6. “Cellular oxide catalysts for emission lean combustion in porous media”, supported by FCT, Portugal, Project PTDC/CTM-ENE/2942/2014 (2016-2018).

7. “Zero CO2 emissions: challenge and foresight for innovative multi-ionic functional membranes”, supported by FCT, Portugal, Project PTDC/CTM-CER/6732/2014 (2016-2018).

8. “Facing the challenges of characterizing novel thermal materials and processes”, supported by FCT, Portugal, Project RECI/CTM-CER/0336/2012 (2013–2015).

9. “Materials and processes for alternative high temperature electrochemical processes”, supported by European Commission, Project IERO-RSF-PR-09099 (2010 – 2014).

10. “Oxide materials for alternative high temperature electrochemical applications”, supported by the European Commission, Project NMP2/CT/2004/515960 “ULCOS – Ultra Low CO2 Steelmaking” (2004-2009), 316 k€.

11. “Gas separation membranes for zero-emission fossil power plants”, HGF-Alliance “MEM-BRAIN” (2008-2010).

12. "Development of New Interstitial Oxide-Ion Conductors for Effective Oxygen Separation and Conversion of the Hydrocarbons", Project POCI/CTM/59197/2004, sponsored by FCT, Portugal (2005-2007), 80 k€.

13. "Novel Ceramic Membranes for Synthesis Gas Production", POCI/CTM/58570/2004, sponsored by FCT, Portugal (2005-2008), 80 k€.

14. “Novel layered ferrite materials with mixed ionic-electronic conductivity for applications in alternative energy sources”, Project PTDC/CTM/64357/2006, sponsored by the FCT, (2008-2011), 146 k€.

15. “Mixed conducting membranes for partial oxidation of natural gas to synthesis gas”, Project No. SfP 978002 (2003-2006), sponsored by NATO Science For Peace Sub-Program.

16. “Investigation of mechanical and ion transport processes in nickel-based ceramic membranes under high oxygen chemical potential gradient”, Project No. 00-0276 (2002-2003), sponsored by INTAS Program.

17. “Development and investigation of novel oxide materials with structure and chemical bonds providing a high mobility of oxygen ions”, Research Program “Substance-2” (2001-2005), sponsored by Belarus government.

18. Research Program “Development of Ceramic Assemblies for Oxygen Generating Electrochemical Module” (2001-2002), sponsored by Belarusian government.

19. “Development of physico-chemical principles of complex oxide ceramic fabrication using polymeric gels”, Research Program “Composite Materials” (2001-2005), sponsored by the Belarus Ministry of Education and Science.

20. “Development of novel ceramic materials having high oxygen permeability for electrochemical convertors of hydrocarbons”, Project X97-138 (1998-1999), sponsored by Belarus Foundation for Fundamental Research.

21. “Synthesis of novell comlex oxide materials with special electric properties and investigation of their physico-chemical characteristics”, Research Program “Substance” (1996-2000), sponsored by Belarus Academy of Science.

22. “Effect of oxide materials microstructure on transport properties and peculiarities of physico-chemical properties of oxide ceramics and conductive layers, produced from ultradispersed powders”, Research Program “Chemistry of Nanostructured Materials” (1996-2000), sponsored by the Belarus Ministry of Education and Science.

23. “Thermodynamic principles of modelling of oxygen transport process in solids”, Global Research Effort Program at the Belarusian State University (1996-2000), sponsored by the Belarus Ministry of Education and Science.

24. “Investigation of regularities in production of complex oxide materials having high oxygen permeability and electrochemical activity”, Global Research Effort Program at the Belarusian State University (1996-2000), sponsored by the Belarus Ministry of Education and Science.

25. “Investigation of effect of defects in cation sublattice on conjugate transport of oxygen ions and electrons in perovskite-type oxides”, Project MP-07 (1996-1997), sponsored by Belarus Foundation for Fundamental Research.

Post-doctoral researchers:

- Gabriel Constantinescu, a fellow of Horizon 2020 Marie Skłodowska-Curie Actions (MSCA) – Widening Fellowships (WF), H2020-WF-02-2019, funded by European Commission, 2020-2022 (supervisor of the responsible researcher).

- Sergii Sergiienko, post-doctoral researcher within the project REMOTE (POCI-01-0145-FEDER-031875), October 2020 – ongoing.

- Gabriel Constantinescu, post-doctoral researcher within the project REMOTE (POCI-01-0145-FEDER-031875), 2019 – concluded in 2020.

- Sergii Sergiienko, grant within the project CENTRO-01-0145-FEDER-000005 (Programa Integrado de I&D SusPhotoSolutions - Soluções Fotovoltaicas Sustentáveis), 2019 – concluded in 2020 (supervising with Prof. J.R. Frade).

- Blanca Isabel Arias Serrano, post-doctoral researcher within the CICECO project (UID/CTM/50011/2019), 2019 – concluded in 2021(supervising with Dr. A.A. Yaremchenko and Prof. J.R. Frade).

- N.M.D. Vitorino “Permeable oxygen storage monoliths for chemical looping in fixed bed reactors” (FCT grant SFRH/BPD/99367/2013), University of Aveiro, 2014 – concluded in June 2016 (supervising with Prof. J.R. Frade).

- Y.A. Ivanova, grant within the project CENTRO-01-0145-FEDER-000005 (Programa Integrado de I&D SusPhotoSolutions - Soluções Fotovoltaicas Sustentáveis), 2017 - concluded in 2018 (supervising with Prof. J.R. Frade)

- N.M. Ferreira “Design of thermoelectric oxides by laser processing techniques” (FCT grant SFRH/BPD/111460/2015), University of Aveiro, 2016- ongoing (supervising with Prof. F.M. Costa).

- Shahed V.R. Modabberi “Towards highly-performing oxide thermoelectrics by redox-promoted nanostructuring”, (FCT grant SFRH/BPD/124238/2016), University of Aveiro, 2017- ongoing (supervising with Prof. F.M. Costa and Prof. A. Sotelo).

- Y.A. Ivanova, grant within the project CENTRO-01-0145-FEDER-000005 (Programa Integrado de I&D SusPhotoSolutions - Soluções Fotovoltaicas Sustentáveis), 2017-ongoing (supervising with Prof. J.R. Frade)

PhD students:

- Diogo João Breda Lopes, “Thermoelectric oxides: from microstructural engineering to devices by laser processing”, University of Aveiro, 2020 – ongoing (supervising with Dr. N.M. Ferreira). FCT grant: 2020.06454.BD

- Parisa Amirkhizi, “A Quest for High Performance Ceramic Thermoelectric Modules”, University of Aveiro, 2020 – ongoing (supervising with Dr.Shahed Rasekh Modabberi). FCT grant: 2020.08051.BD

- J.H.G.F. Nogueira, “Carbon-based functional nanomaterials from renewable natural resources: novel synthetic routes and water treatment applications”, 2020 - ongoing (supervising with Dr. A.L. Daniel-da-Silva). FCT grant: SFRH/BD/146249/2019.

- K.V. Zakharchuk, “Electrochemical elimination of NOx by reversible solid oxide cell with selective electrocatalysts”, 2018-ongoing (supervising with Dr. A. Yaremchenko). FCT grant: SFRH/BD/138773/2018.

- D.V.R. Lopes, “Electrochemical reduction of iron oxides into zero-valent iron for red mud valorisation”, concluded in 2020 (supervising with Prof. M.M.J. Quina and Prof. J.R. Frade). FCT grant: PD/BD/114106/2015.

- N.M. Ferreira, “Materials and concepts for CO₂ lean ironmaking by pyroelectrolysis”, University of Aveiro, concluded in 2014 (supervising with Prof. J.R. Frade and Prof. F.M. Costa).

MSc students:

- Miguel Amado Vieira, “Hydrothermally-activated ceramic membranes for oxygen separation”, 2020-ongoing (supervising with Dr. A.A. Yaremchenko).

- D.J.B. Lopes, “Design of multifunctional titania-based photocatalysts by controlled redox reactions”, concluded in 2019 (supervising with Dra. A.L. Daniel-da-Silva).

- R. Santos, “(Ni,Mo)-TiO₂ electrodes for electrochemical applications”, concluded in 2019 (supervising with Prof. J.R. Frade).

- F.P. Carreira, “Development of thermoelectric materials for high-temperature energy conversion by laser processing”, concluded in 2018 (supervising with Dr. N.M. Ferreira).

- I. Fortes, “Effects of laser processing on the properties of thermoelectric materials”, 2017-pending (supervising with Dr. N.M. Ferreira and Prof. F.M. Costa

Research fellows:

- Daniela V.R. Lopes, research (MSc) fellowship within the project SIDERWIN (DLV-768788-Horizon 2020/SPIRE10), 2020-ongoing.

- Diogo João Breda Lopes, research (MSc) fellowship within the project REMOTE (POCI-01-0145-FEDER-031875), 2019 – 2020 (supervising with Dr. Nuno Ferreira).

- M. Baptista, research (MSc) fellowship within the project Smart Green Homes SGH - POCI-01-0247-FEDER-007678, 2017-2019 (supervising with Prof. I. Capela).

- Blanca Isabel Arias Serrano, research (MSc) fellowship within the CICECO project (UID/CTM/50011/2013), 2017-2018 (supervising with Dr. A.A. Yaremchenko and Prof. J.R. Frade).

- K.V. Zakharchuk, research (BSc) fellowship within the CICECO project (UID/CTM/50011/2013), 2016-2017 (supervising with Dr. A.A. Yaremchenko and Prof. J.R. Frade).

- K.V. Zakharchuk, research (MSc) fellowship within the project Smart Green Homes SGH - POCI-01-0247-FEDER-007678, 2017-2018 (supervising with Dr. A.A. Yaremchenko and Prof. J.R. Frade).

Undergraduated students:

- Gonçalo Marques, Processamento a laser de materiais termoeléctricos e seus efeitos nas propriedades / Effects of the laser processing on the properties of thermoelectric materials, Project Physics (3^rd year), 2020-ongoing (supervising with Dr. N.M. Ferreira).

- João Gabriel Pereira Grillo, Produção a laser de delafossitas e análise das suas propriedadaes termoelétricas/ Laser processing of delafossites and analysis of their thermoelectric properties, Project Physics (3^rd year), 2020 (supervising with Dr. N.M. Ferreira).

- João Francisco Martins, Materiais termoelétricos à base de ZnO para a conversão de calor em eletricidade / Thermoelectric materials based on ZnO for heat-to-electricity conversion, Projeto com Materiais / Project with Materials (3rd year), 2016 (supervisor).

- Nuno Rosado Neves, Processamento a laser de materiais termoelétricos e suas propriedades / Laser processing of thermoelectric materials and their properties, Projeto Física / Project Physics (3^rd year), 2017 (supervising with Dr. N.M. Ferreira and Prof. F.M. Costa).

Post-graduate research fellows / visiting students / young researchers:

• over 10 from 2010.

________________________________________________________________________________

Referee of SCI journals:

Reviewing for ~60 SCI journal insluding Chemical Society Reviews, Advanced Materials, Advanced Functional Materials, Chemistry of Materials, Nano Energy and Journal of Materials Chemistry A.

Verified Peer Review Record at the Publons Platform:
https://publons.com/author/1487278/andrei-kovalevsky
________________________________________________________________________________

Editorial/Advisory Boards

- Editorial Board of Springer Nature Applied Sciences (Springer Nature): 2018 - ongoing

https://www.springer.com/engineering/journal/42452?detailsPage=editorialBoard

- Editorial Board of International Journal of Molecular Sciences (MDPI): 2018 - ongoing

https://www.mdpi.com/journal/ijms/sectioneditors/material_sciences

- Editorial Board of Solids (MDPI): 2020 - ongoing

https://www.mdpi.com/journal/solids/editors

- Editorial Board of Physchem (MDPI): 2020 - ongoing

https://www.mdpi.com/journal/physchem/editors

- Editorial Board of Materials International (AMG Transcend Association): 2019 - ongoing

https://materials.international/?page_id=20

- Editorial Board of Nanomaterials Science & Engineering (University of Aveiro): 2020 - ongoing

https://proa.ua.pt/index.php/nmse/about/editorialTeam

- Editorial Board of Heliyon journal (Cell Press): 2015-2019

- Advisory Board of Heliyon Chemistry section, Heliyon journal (Cell Press): 2019-ongoing

https://www.cell.com/heliyon/chemistry/editors

________________________________________________________________________________

Evaluations of projects/proposals

- Member of Evaluation Panel for The Research Council of Norway (RCN), Norwegian-Indian research projects on nanotechnology, microtechnology and advanced materials (2019);

- Evaluator of project proposals for ACS Petroleum Research Fund (2015,2019);

- Evaluator of project proposals for Israel Science Foundation (ISF) (2016);

- Evaluator of project proposals for The Research Council of Norway (2017-2019);

-  Evaluator of project proposals in M-ERA.NET calls (2017,2018,2020);

- Evaluator of project proposals for National Science Centre (Poland) (2018).

- Evaluator of project proposals for German Research Foundation (DFG) (2020).

- Evaluator of project proposals for The Technology Agency of the Czech Republic (2020).

- Evaluator of project proposals for ANI – National Innovation Agency, Portugal (2020).

- Evaluator of project proposals for Slovak Academy of Sciences (2021)

_____________________________________

Awards:

2020: Supervisor of the Master thesis awarded the 1st Prize for the best Master Thesis in 2018-2019 and 2019-2020 years in the area of Science and Engineering of Materials by Portuguese Society of Materials (SPM)

2019: Top peer reviewer 2019 in cross-field for the elite contributions to scholarly peer review and editorial pursuits internationally, Global Peer Review Awards by Publons

1997: Sevchenko Award for the best scientific work in natural science for thesis “Materials for high temperature electrochemical devices” (Belarus Ministry of Education and Science)

1995: The Best Student Scientific Work Award (Belarus Ministry of Education and Science)

1994: Soros Student Award (International Soros Science Education Program)

1995: Soros Student Award (International Soros Science Education Program)

 Individual grants:

2004: Postdoctoral fellowship from FCT, Portugal

2007: Postdoctoral fellowship from Belgian Federal Science Policy Office

2012: Development grant from Investigador FCT 2012 Program

Scopus search: (Last name: Kovalevsky; Initials or First Name: A; Affiliation: Aveiro)

Papers published in international SCI journals: ~150 (2021)

Papers published in other referred journals and proceedings: 8

Chapters in books: 5

h-factor: 35; average citations per article: 28.0 (Scopus, July 2021)

 Publications

Book chapters

• A.V. Kovalevsky, Defects engineering for performing SrTiO₃-based thermoelectric thin films: principles and selected approaches, In: “Advanced ceramic and metallic coating and thin film materials for energy and environmental applications”, Eds. J. Zhang, Y.-G. Jung, Springer, 2018, pp. 91-120.

• F. Amaral, N. M. Ferreira, A. V. Kovalevsky, Thermoelectric Materials and the Measurement of Their Electrical Properties, In: “Electrical Measurements: Introduction, Concepts and Applications”, Ed. M.P.F. Graça, Nova Science Publishers, 2018, pp. 199-224.

• A. Buekenhoudt, A. Kovalevsky, J. Luyten, F. Snijkers, Basic aspects in inorganic membrane preparation, In: “Comprehensive Membrane Science and Technology”, Eds. E. Drioli and L. Giorno, Elsevier, 2010, pp. 217-252.

• V. Kharton, E.V. Tsipis, A.P. Carvalho, A.V.Kovalevsky, E.N. Naumovich, F.M.B. Marques, J.R. Frade and A.L. Shaula, Glass-Ceramic Sealants for SOFC-Based Systems, In: “Fuel Cell Technologies: State and Perspectives”, Springer-Verlag, 2005, pp. 231-238.

• A. Kovalevsky, V. Kharton, E. Naumovich, F. Marques and J. Frade, Ionic transport in perovskite-related mixed conductors: ferrite-, cobaltite-, nickelate-, and gallate-based systems. In: “Mixed Ionic Electronic Conducting Perovskites for Advanced Energy Systems”, Eds. N. Orlovskaya and N. Browning, Kluwer Academic Publ., Dordrecht-Boston-London, 2004, pp. 109-122.

International SCI journals:

2021

• S.A. Sergiienko, D.V. Lopes, G. Constantinescu, M.C. Ferro, N.D. Shcherban, O.B. Tursunov, V.I. Shkepu, H. Pazniak, N.Y. Tabachkova, E.R. Castellón, A.V. Kovalevsky, MXene-containing composite electrodes for hydrogen evolution: Material design aspects and approaches for electrode fabrication, Int. J. Hydrogen Energy, 2021, vol. 46, pp. 11636-11651.

• O.V. Merkulov, D. Lopes, A.A. Markov, N.M. Ferreira, M.V. Patrakeev, A.V. Kovalevsky, Tubular thermoelectric module based on oxide elements grown by the laser floating zone, ACS Appl. Energy Materials, 2021, vol. 4, pp. 5848–5857.

• B.I. Arias-Serrano, S.M. Mikhalev, M.C. Ferro, D.M. Tobaldi, J.R. Frade, A.V. Kovalevsky, On the high-temperature degradation mechanism of ZnO-based thermoelectrics, J. European Ceram. Soc., 2021, vol. 41, pp. 1730-1734.

• G. Constantinescu, Sh. Rasekh, P. Amirkhizi, D.V. Lopes, M.A. Vieira, A.V. Kovalevsky, J.C. Diez, A. Sotelo, M.A. Madre, M.A. Torres, Exploring the high-temperature electrical performance of Ca_3-xLa_xCo₄O₉ thermoelectric ceramics for moderate and low substitution levels, Symmetry, 2021, vol. 13, p. 782.

• C.G.M. Lima, A.J.M. Araujo, R.M. Silva, R.A. Raimundo, J.P.F. Grilo, G. Constantinescu, A.V. Kovalevsky, D.A. Macedo, Electrical assessement of brownmillerite-type calcium ferrite materials obtained by proteic sol-gel route and by solid-state reaction using mollusk shells, J. Solid State Chem., 2021, vol. 299, p. 122172.

• G. Constantinescu, S.M. Mikhalev, A.D. Lisenkov, D.V. Lopes, A.R. Sarabando, M.C. Ferro, T.F. da Silva, S.A. Sergiienko, A.V. Kovalevsky, Prospects for electrical performance tuning in Ca₃Co₄O₉ materials be metallic Fe and Ni particles addition, Materials, 2021, vol. 14, p. 980.

• Y.A. Ivanova, D.V. Lopes, E. Durana, A. Lisenkov, J.R. Frade, A.V. Kovalevsky, Microstructural design of cellular 3 YTZ-Al₂O₃ ceramic membranes, Ceram. Int., 2021, vol. 47, pp. 1040-1046.

• A.S. Panfilov, G.E. Grechnev, A.A. Lyogenskaya, V.A. Pashchenko, L.O. Vasylechko, V.M. Hreb, A.V. Kovalevsky, Magnetic and structural properties of La_1-xGd_xCoO₃ compounds, Physica B: Condens. Matter, 2021, vol. 609, p. 412848.

2020

• N. Nasani, A.V. Kovalevsky, W. Xie, S. Rasekh, G. Constantinescu, A. Weidenkaff, D. Pukazhselvan, D.P. Fagg, Unravelling the effects of calcium substitution in BaGd₂CoO₅ Haldane gap 1D material and its thermoelectric performance, J. Phys. Chem. C, 2020, vol. 124, pp. 13017-13025.

• N.M. Ferreira, D. Lopes, A.V. Kovalevsky, F.M. Costa, A. Sotelo, M.A. Madre, A. Rezania, Thermoelectric modules built using ceramic legs grown by laser floating zone, Ceram. Int., 2020, vol. 46, pp. 24318-24325.

• A.A. Yaremchenko, J. Macías, A.V. Kovalevsky, B.I. Arias-Serrano, J.R. Frade, Electrical conductivity and thermal expansion of Ln-substituted SrTiO₃ for solid oxide cell electrodes and interconnects: the effect of rare-earth cation size, J. Power Sources, 2020, vol. 474, p. 228531.

• A.S. Panfilov, A.A. Lyogenskaya, G.E. Grechnev, V.A. Pashchenko, L.O. Vasylechko, V.M. Hreb, A.V. Kovalevsky, The effect of temperature and pressure on the spin state of cobalt ions in La_1-xPr_xCoO₃ compounds, Low Temperature Physics, 2020, vol. 46, pp. 606-614.

• A.S. Panfilov, A.A. Lyogenskaya, G.E. Grechnev, V.A. Pashchenko, L.O. Vasylechko, V.M. Hreb, A.V. Kovalevsky, Effects of temperature and pressure on the magnetic properties of La_1-xPr_xCoO₃, Physica Status Solidi, 2020, vol. 257, p. 2000085.

• A.V. Kovalevsky, K.V. Zakharchuk, M.H. Aguirre, W. Xie, S.G. Patrício, N.M. Ferreira, D. Lopes, S.A. Sergiienko, G. Constantinescu, S.M. Mikhalev, A. Weidenkaff, J.R. Frade, Redox engineering of strontium titanate-based thermoelectrics, J. Mater. Chem. A, 2020, vol. 8, p. 7317.

• F.P. Carreira, N.M. Ferreira, A.V. Kovalevsky, Laser processing as a tool for designing donor-substituted calcium-manganite-based thermoelectrics, J. Alloys and Compounds, 2020, vol. 829, 154466.

• D.V. Lopes, A.V. Kovalevsky, M.J. Quina, J.R. Frade, Electrochemical deposition of zero-valent iron from alkaline ceramic suspensions of Fe_2-xAl_xO₃ for iron valorisation, J. Electrochem. Soc., 2020, vol. 167, 102508.

• G. Constantinescu, A.R. Sarabando, Sh. Rasekh, D. Lopes, S. Sergiienko, P. Amirkhizi, J.R. Frade, A.V. Kovalevsky, Redox-promoted tailoring of the high-temperature electrical performance in Ca₃Co₄O₉ materials by metallic cobalt addition, Materials, 2020, 13, p. 1060.

• D. Lopes, A.L. Daniel-da-Silva, A.R. Sarabando, B.I. Arias-Serrano, E. Rodríguez-Aguado, E. Rodríguez-Castellón, T. Trindade, J.R. Frade, A.V. Kovalevsky, Design of multifunctional titania-based photocatalysts by controlled redox reactions, Materials, 2020, vol. 13, p. 758.

• Y.A. Ivanova, C. Freitas, D.V. Lopes, A.V. Kovalevsky, J.R. Frade, Cellular zirconia ceramics processed by direct emulsification, J. European Ceram. Soc., 2020, vol. 40, pp. 2056-2062.

• D.V. Lopes, E. Durana, F.R. Cesconeto, P.V. Almeida, A.V. Kovalevsky, M.J. Quina, J.R. Frade, Direct processing of cellular ceramics from a single red mud precursor, Ceram. Int., 2020, vol. 46, pp. 16700-16707.

2019

• D.V. Lopes, Y.A. Ivanova, A.V. Kovalevsky, A.R. Sarabando, J.R. Frade, M.J. Quina, Electrochemical reduction of hematite-based ceramics in alkaline medium: Challenges in electrode design, Electrochim. Acta, 2019, vol. 327, p. 135060.
• N.M. Ferreira, N.R. Neves, M.C. Ferro, M.A. Torres, M.A. Madre, F.M. Costa, A. Sotelo, A.V. Kovalevsky, Growth rate effects on the thermoelectric performance of CaMnO₃-based ceramics, J. European Ceram. Soc., 2019, vol. 39, pp. 4184-4188.
• B.I. Arias-Serrano, W. Xie, M.H. Aguirre, D.M. Tobaldi, A.R. Sarabando, Sh. Rasekh, S.M. Mikhalev, J.R. Frade, A. Weidenkaff, A.V. Kovalevsky, Exploring tantalum as a potential dopant to promote the thermoelectric performance of zinc oxide, 2019, Materials, vol. 12, p. 2057.
• A.A. Emerenciano, A.J.M. Araújo, J.P.F Grilo, D.A. Macedo, Sh. Rasekh, A.V. Kovalevsky, C.A. Paskocimas, R.M. Nascimento, Environmentally friendly synthesis methods to obtain the misfit [Ca₂CoO_3-δ]_0.62[CoO₂] thermoelectric material, Mater. Lett., 2019, vol. 254, pp. 286-289.
• K.V. Zakharchuk, D.M. Tobaldi, X. Xiao, W. Xie, S.M. Mikhalev, J.F. Martins, J.R. Frade, A. Weidenkaff, A.V. Kovalevsky, Synergistic effects of zirconium- and aluminum co-doping on the thermoelectric performance of zinc oxide, J. Europ. Ceram. Soc., 2019, vol. 39, pp. 1222-1229.
• M.A. Torres, F.M. Costa, D. Flahaut, K. Touati, S. Rasekh, N.M. Ferreira, J.C. Allouche, M. Depriester, M.A. Madre, A.V. Kovalevsky, J.C. Diez, A. Sotelo, Significant enhancement of the thermoelectric performance in Ca₃Co₄O₉ thermoelectric materials through combined strontium substitution and hot-pressing process, J. Europ. Ceram. Soc., 2019, vol. 39, pp. 1186-1192.
• M. Baptista, A.V. Kovalevsky, A.R. Sarabando, M.C. Ferro, I. Capela, J.R. Frade, Highly-porous mayenite-based ceramics by combined suspension emulsification and reactive sintering, Mat. Lett., 2019, vol. 237, pp. 41-44.
• N.M. Ferreira, M.C. Ferro, A.R. Sarabando, A. Ribeiro, A. Davarpanah, V. Amaral, M.A. Madre, A.V. Kovalevsky, M.A. Torres, F.M. Costa, A. Sotelo, Improvement of thermoelectric properties of Ca_0.9Gd_0.1MnO₃ by powder engineering through K₂CO₃ additions, J. Mater. Sci., 2019, vol. 54, pp. 3252-3261.

2018

• K.V. Zakharchuk, M. Widenmeyer, D.O. Alikin, W. Xie, S. Populoh, S.M. Mikhalev, A. Tselev, J.R. Frade, A. Weidenkaff, A.V. Kovalevsky, A self-forming nanocomposite concept for ZnO-based thermoelectrics, J. Mater. Chem. A, 2018, vol. 6, pp.13386-13396.
• X. Xiao, M. Widenmeyer, K. Mueller, M. Scavini, S. Checchia, C. Castellano, D. Ma, S. Yoon, W. Xie, U. Starke, K. Zakharchuk, A. Kovalevsky, A. Weidenkaff, A squeeze on the perovskite lattice improves the thermoelectric performance of Europium Calcium Titanates, Materials Today Physics, 2018, vol. 7, pp. 96-105.
• D.V. Lopes, A.V. Kovalevsky, M.J. Quina, J.R. Frade, Processing of highly-porous cellular iron oxide-based ceramics by emulsification of ceramic suspensions, Ceram. Int., 2018, vol. 44, pp. 20354-20360.
• N.M. Ferreira, F.M. Costa, A.V. Kovalevsky, M.A. Madre, M.A. Torres, J.C. Diez, A. Sotelo, New environmentally friendly Ba-Fe-O thermoelectric material by flexible laser floating zone processing, Scripta Mat., 2018, vol. 145, pp. 54-57.
• A.D. Brandão, N. Nasani, A.A. Yaremchenko, A.V. Kovalevsky, D.P. Fagg, Solid solution limits and electrical properties of scheelite Sr_yLa_1-yNb_1-xV_xO_4-d materials for x=0.25 and 0.30 as potential proton conducting ceramic electrolytes, Int. J. Hydrogen En., 2018, vol. 43, pp. 18682-18690.
• N. Nayak, N. Vitorino, J.R. Frade, A.V. Kovalevsky, V.D. Alves, J.G. Crespo, C.A.M. Portugal, Design of alumina monoliths by emulsion-gel casting: Understanding the monolith structure from a rheological approach, Materials and Design, 2018, vol. 157, pp. 119-129.
• N.M. Ferreira, M.C. Ferro, M.A. Valente, J.R. Frade, F.M. Costa, A.V. Kovalevsky, Unusual redox behaviour of the magnetite/hematite core-shell structures processed by the laser floating zone method, Dalton Transactions, 2018, vol. 47, pp. 5646-5651.

2017

• E. Lalli, N.M.D. Vitorino, C.A.M. Portugal, J.G. Crespo, C. Boi, J.R. Frade, A.V. Kovalevsky, Flexible design of cellular Al₂TiO₅ and Al₂TiO₅ – Al₂O₃ composite monoliths by reactive firing, Materials and Design, 2017, vol. 131, pp. 92-101.
• A.V. Kovalevsky, M.H. Aguirre, S. Populoh, S.G. Patrício, N.M. Ferreira, S.M. Mikhalev, D.P. Fagg, A. Weidenkaff, J.R. Frade, Designing strontium titanate-based thermoelectrics: insight into defect chemistry mechanisms, J. Mater. Chem. A, 2017, vol. 5, pp. 3909-3922.
• X. Xiao, M. Widenmeyer, W. Xie, T. Zou, S. Yoon, M. Scavini, S. Checchia, Z. Zhong, P. Hansmann, S. Kilper, A. Kovalevsky, A. Weidenkaff, Tailoring the structure and thermoelectric properties of BaTiO₃ via Eu²⁺ substitution, Phys. Chem. Chem. Phys., 2017, vol. 19, pp13469-13480.
• N. Nasani, C.M. Oliveira Rocha, A.V. Kovalevsky, G. Otero Irurueta, S. Populoh, P. Thiel, A. Weidenkaff, F. Neto Da Silva, D.P. Fagg, Exploring the Thermoelectric Performance of BaGd₂NiO₅ Haldane Gap Materials, Inorg. Chem., 2017, vol. 56, pp. 2354-2362.
• N. Nasani, D. Pukazhselvan, A.V. Kovalevsky, A.L. Shaula, D.P. Fagg, Conductivity recovery by redox cycling of yttrium doped barium zirconate proton conductors and exsolution of Ni-based sintering additives, J. Power Sources, 2017, vol. 339, pp. 93-102.
• N.M.D. Vitorino, A.V. Kovalevsky, M.C. Ferro, J.C.C. Abrantes, J.R. Frade, Design of NiAl₂O₄ cellular monoliths for catalytic applications, Materials and Design, 2017, vol. 117, pp. 332-337.
• Y.A. Ivanova, J.F. Monteiro, L.B. Teixeira, N. Vitorino, A.V. Kovalevsky, J.R. Frade, Designed porous microstructures for electrochemical reduction of bulk hematite ceramics, Materials and Design, 2017, vol. 122, pp. 307-314.
• D. Pukazhselvan, N. Nasani, T. Yang, I. Bdikin, A.V. Kovalevsky, D.P. Fagg, Dehydrogenation properties of magnesium hydride loaded with Fe, Fe−C, and Fe−Mg additives, ChemPhysChem, 2017, vol. 18, pp. 287-291.
• N.M. Ferreira, M.C. Ferro, D.P. Fagg, F.M. Costa, J.R. Frade, A.V. Kovalevsky, Exploring the effects of silica and zirconia additives on electrical and redox properties of ferrospinels, Journal of the European Ceramic Society, 2017, vol. 37, pp.2621-2628.
• N.M. Ferreira, A.V. Kovalevsky, M.A. Valente, J.C. Waerenborgh, J.R. Frade, F.M. Costa, Structural and redox effects in iron-doped magnesium aluminosilicate, J. Cryst. Growth, 2017, vol. 457, pp. 19-23.

2016

• N.M. Ferreira, M.C. Ferro, S.M. Mikhalev, F.M. Costa, J.R. Frade, A.V. Kovalevsky, Guidelines to design multicomponent ferrospinels for high-temperature applications, RSC Adv., 2016, vol. 6, 32540-32548.

• A. Sotelo, F.M. Costa, N.M. Ferreira, A. Kovalevsky, M.C. Ferro, V.S. Amaral, J.S. Amaral, Sh. Rasekh, M.A. Torres, M.A. Madre, J.C. Diez, Tailoring Ca₃Co₄O₉ microstructure and performances using a transient liquid phase sintering additive, J. Europ. Ceram. Soc., 2016, vol. 36, pp. 1025-1032.

• J.F. Monteiro, Yu.A. Ivanova, A.V. Kovalevsky, D.K. Ivanou, J.R. Frade, Reduction of magnetite to metallic iron in strong alkaline medium, Electrochim. Acta, 2016, vol. 193, pp. 284-292.

• D. Pukazhselvan, J. Perez, N. Nasani, I. Bdikin, A.V. Kovalevsky, D.P. Fagg, Formation of Mg_xNb_yO_x+y through the mechanochemical reaction of MgH₂ and Nb₂O₅, and its effect on the hydrogen-storage behaviour of MgH₂, ChemPhysChem, 2016, vol. 17, pp. 178-183.

• N.M. Ferreira, A.V. Kovalevsky, F.M. Costa, J.R. Frade, Processing effects on properties of (Fe,Mg,Al)₃O₄ spinels as potential consumable anodes for pyroelectrolysis, J. Am. Ceram. Soc., 2016, vol. 99, pp. 1889-1893.

• K. Miyazawa, F. Amaral, A.V. Kovalevsky, M.P.F. Graça, Hybrid microwave processing of Ca₃Co₄O₉ thermoelectrics, Ceram. Int., 2016, vol. 42, pp. 9482-9487.

• N.M. Ferreira, A.V. Kovalevsky, M.C. Ferro, F.M. Costa, J.R. Frade, A new concept of ceramic consumable anode for iron pyroelectrolysis in magnesium aluminosilicate melts, Ceram. Int., 2016, vol. 42, pp. 11070-11076.

• N.M.D. Vitorino, A.V. Kovalevsky, M.C.C. Azevedo, J.C.C. Abrantes, J.R. Frade, Self-functionalization of cellular alumina monoliths in hydrothermal conditions, J. Europ. Ceram. Soc., 2016, vol. 36, pp.1053-1058.

• N.M. Ferreira, A.V. Kovalevsky, M.A. Valente, J.C. Waerenborgh, J.R. Frade, F.M. Costa, Structural and redox effects in iron-doped magnesium aluminosilicate, J. Cryst. Growth, 2016, vol. 457, pp. 19-23.

• N.M. Ferreira, A.V. Kovalevsky, M.A. Valente, N.A. Sobolev, J.C. Waerenborgh, F.M. Costa, J.R. Frade, Iron incorporation into magnesium aluminosilicate glass network under fast laser floating zone processing, Ceram. Int., 2016, vol. 42, pp. 2693-2698.

• N. Vitorino, C. Freitas, A.V. Kovalevsky, J.C.C. Abrantes, J.R. Frade, Cellular MgAl₂O₄ spinels prepared by reactive sintering of emulsified suspensions, Mat. Lett., 2016, vol. 164, pp. 190-193.

2015

• A.A. Yaremchenko, S. Populoh, S.G. Patrício, J. Macías, P. Thiel, D.P. Fagg, A. Weidenkaff, J.R. Frade, A.V. Kovalevsky, Boosting thermoelectric performance by controlled defect chemistry engineering in Ta-substituted strontium titanate, Chem. Mater., 2015, vol. 27, pp. 4995-5006.

• N.M.D. Vitorino, A.V. Kovalevsky, J.C.C. Abrantes, J.R. Frade, Hydrothermal synthesis of boehmite in cellular alumina monoliths for catalytic and separation applications, J. Europ. Ceram. Soc., 2015, vol. 35, pp. 3119-3125.

• A.V. Kovalevsky, S. Populoh, S.G. Patrício, P. Thiel, M.C. Ferro, D.P. Fagg, J.R. Frade, A. Weidenkaff, Design of SrTiO₃-based thermoelectrics by tungsten substitution, J. Phys. Chem. C, 2015, vol. 119, pp.4466-4478.

• N.M. Ferreira, A.V. Kovalevsky, S.M. Mikhalev, F.M. Costa, J.R. Frade, Prospects and challenges of iron pyroelectrolysis in magnesium aluminosilicate melts near minimum liquidus temperature, Phys. Chem. Chem. Phys., 2015, vol. 17, pp. 9313-9325.

• N. Nasani, D. Ramasamy, S. Mikhalev, A.V. Kovalevsky, D.P. Fagg, Fabrication and electrochemical performance of a stable, anode supported thin BaCe_0.4Zr_0.4Y_0.2O_3-d electrolyte protonic ceramic fuel cell, J. Power Sources, 2015, vol. 278, pp. 582-589.

2014

• A.V. Kovalevsky, A.A. Yaremchenko, S. Populoh, P. Thiel, D.P. Fagg, A. Weidenkaff, J.R. Frade, Towards a high thermoelectric performance in rare-earth substituted SrTiO₃: Effects provided by strongly-reducing conditions, Phys. Chem. Chem. Phys., 2014, vol. 16, pp. 26946-26954.

• A.V. Kovalevsky, A.A. Yaremchenko, S. Populoh, A. Weidenkaff, J.R. Frade, Effect of A-site cation deficiency on the thermoelectric performance of donor-substituted strontium titanate, J. Phys. Chem. C, 2014, vol. 118, pp. 4596-4606.

• R.G. Carvalho, A.V. Kovalevsky, M.W. Lufaso, R.F. Silva, F.M. Costa, F.M. Figueiredo, Ionic conductivity of directionally solidified zirconia-mullite eutectics, Solid State Ionics, 2014, vol. 256, pp. 45-51.

• N.M. Ferreira, A.V. Kovalevsky, E.N. Naumovich, A.A. Yaremchenko, K.V. Zakharchuk, F.M. Costa, J.R. Frade, Effects of transition metal additives on redox stability and high-temperature electrical conductivity of (Fe,Mg)₃O₄ spinels, J. Eur. Ceram. Soc., 2014, vol. 34, pp. 2339-2350.

• N.M. Ferreira, A.V. Kovalevsky, J.C. Waerenborgh, M. Quevedo-Reyes, A.A. Timopheev, F.M. Costa, J.R. Frade, Crystallization of iron-containing Si-Al-Mg-O glasses under laser floating zone conditions, J. Alloys Comp., 2014, vol. 611, pp. 57-64.

2013

• A.V. Kovalevsky, A.A. Yaremchenko, E.N. Naumovich, N.M. Ferreira, S.M. Mikhalev, F.M. Costa, J.R. Frade, Redox stability and high-temperature electrical conductivity of magnesium- and aluminium-substituted magnetite, J. Europ. Ceram. Soc., 2013, vol. 33, pp. 2751-2760.

• A.V. Kovalevsky, A.A. Yaremchenko, S, Populoh, A. Weidenkaff, J.R. Frade, Enhancement of thermoelectric performance in strontium titanate by praseodymium substitution, J. Appl. Phys., 2013, vol. 113, pp. 053704.

• N.M. Ferreira, A. Kovalevsky, M.A. Valente, F.M. Costa, J. Frade, Magnetite/hematite core/shell fibres grown by laser floating zone method, Appl. Surf. Sci., 2013, vol. 278, pp. 203-206.

• A.A. Yaremchenko, C. Buysse, V. Middelkoop, F. Snijkers, A. Buekenhoudt, J.R. Frade, A.V. Kovalevsky, Impact of sulphur contamination on the oxygen transport mechanism through Ba_0.5Sr_0.5Co_0.8Fe_0.2O_3-d: Relevant issues in the development of capillary and hollow fibre membrane geometry, J. Membr. Sci., 2013, vol. 428, pp. 123-130.

• J.F. Monteiro, J.C. Waerenborgh, A.V. Kovalevsky, A.A. Yaremchenko, J.R. Frade, Synthesis of Sr_0.9K_0.1FeO_3-d electrocatalysts by mechanical activation, J. Solid State Chem., 2013, vol. 198, pp. 169-175.

• E.M. Domingues, E.V. Tsipis, A.A. Yaremchenko, F.M. Figueiredo, J.C. Waerenborgh, A.V. Kovalevsky, J.R. Frade, Redox stability and electrical conductivity of Fe_2.3Mg_0.7O_4±d spinel prepared by mechanochemical activation, J. Europ. Ceram. Soc., 2013, vol. 33, pp. 1307-1315.

2012

• A.V. Kovalevsky, E.N. Naumovich, A.A. Yaremchenko, J.R. Frade, High-temperature conductivity, stability and redox properties of Fe_3-xAl_xO₄ spinel-type materials, J. Europ. Ceram. Soc., 2012, vol. 32, pp. 3255-3263.

• F. Snijkers, C. Buysse, V. Middelkoop, A. Buekenhoudt, A. Kovalevsky, Mixed conducting ceramic capillary membranes for catalytic membrane reactors: Performance of Ba_0.5Sr_0.5Co_0.8Fe_0.2O_3-d capillaries, Adv. Mat. Res., 2012, vol. 560-561, pp. 853-859.

• J. Van Noyen, V. Middelkoop, C. Buysse, A. Kovalevsky, F. Snijkers , A. Buekenhoudt, S. Mullens, J. Luyten, J. Kretzschmar, S. Lenaerts, Fabrication of perovskite capillary membranes for high temperature gas separation, Catalysis Today, 2012, vol. 193, pp. 172-178.

2011

• A.V. Kovalevsky, A.A. Yaremchenko, V.A. Kolotygin, A.L. Shaula, V.V. Kharton, F.M.M. Snijkers, A. Buekenhoudt, J.R. Frade, E.N. Naumovich, Processing and oxygen permeation studies of asymmetric multilayer Ba_0.5Sr_0.5Co_0.8Fe_0.2O_3-d membranes, J. Membr. Sci., 2011, vol. 380, pp. 68-80.

• C. Buysse, A. Kovalevsky, F. Snijkers, A. Buekenhoudt, S. Mullens, J. Luyten, J. Kretzschmar, S. Lenaerts, Development, performance and stability of sulphur-free, macrovoid-free BSCF capillaries for high temperature oxygen separation from air, J. Membr. Sci., 2011, vol. 372, p. 239-248.

• D.J. Cumming, V.V. Kharton, A.A. Yaremchenko, A.V. Kovalevsky, J.A. Kilner, Electrical properties and dimensional stability of Ce-doped SrTiO_3-d for solid oxide fuel cell applications, J. American Ceram. Soc., 2011, vol. 94, pp. 2993-3000.

• A.V. Kovalevsky, C. Buysse, F. Snijkers, A. Buekenhoudt, J. Luyten, J. Kretzschmar, S. Lenaerts, Oxygen exchange-limited transport and surface activation of Ba_0.5Sr_0.5Co_0.8Fe_0.2O_3−δ capillary membranes”, J. Membr. Sci., 2011, vol. 368, pp. 223-232.

• K.E. Colombo, V.V. Kharton, A.P. Viskup, A.V. Kovalevsky, A.L. Shaula, O. Bolland, Simulation of a mixed-conducting membrane-based gas turbine power plant for CO₂ capture: system level analysis of operation stability and individual process unit degradation, J. Solid State Electrochem., 2011, vol. 15, p. 329-347.

• A.V. Kovalevsky, A.A. Yaremchenko, V.A. Kolotygin, F.M.M. Snijkers, V.V. Kharton, A. Buekenhoudt, J.J. Luyten, Oxygen permeability and stability of asymmetric multilayer Ba_0.5Sr_0.5Co_0.8Fe_0.2O_3−δ ceramic membranes, Solid State Ionics, 2011, vol. 192, p. 677-681.

• A.A. Yaremchenko, A.V. Kovalevsky, E.N. Naumovich, V.V. Kharton, J.R. Frade, High-temperature electrical properties of magnesiowustite Mg_1−xFe_xO and spinel Fe_3−x−yMg_xCr_yO₄ ceramics, Solid State Ionics, 2011, vol. 192, p. 252-258.

• A.A. Yaremchenko, E.V. Tsipis, A.V. Kovalevsky, J.C. Waerenborgh, V.V. Kharton, Stability, oxygen permeability and chemical expansion of Sr(Fe,Al)O_3−δ- and Sr(Co,Fe)O_3−δ-based membranes, Solid State Ionics, 2011, vol. 192, p. 259-268.

• E.V. Tsipis, E.N. Naumovich, M.V. Patrakeev, A.A. Yaremchenko, I.P. Marozau, A.V. Kovalevsky, J.C. Waerenborgh, V.V. Kharton, Oxygen deficiency, vacancy clustering and ionic transport in (La,Sr)CoO_3−δ, Solid State Ionics, 2011, vol. 192, p. 42-48.

• A. Brandão, J.F. Monteiro, A.V. Kovalevsky, D.P. Fagg, V.V. Kharton, J.R. Frade, Guidelines for improving resistance to CO₂ of materials for solid state electrochemical systems, Solid State Ionics, 2011, vol. 192, p. 16-20.

2010

• C. Buysse, A. Kovalevsky, F. Snijkers, A. Buekenhoudt, S. Mullens, J. Luyten, J. Kretzschmar, S. Lenaerts, Fabrication and oxygen permeability of gastight, macrovoid-free Ba_0.5Sr_0.5Co_0.8Fe_0.2O_3−δ capillaries for high temperature gas separation, J. Membr. Sci., 2010, vol. 359, p. 86-92.

2009

• A.L. Shaula, E.N. Naumovich, A.P. Viskup, V.V. Pankov, A.V. Kovalevsky, V.V. Kharton, Oxygen transport in La₂NiO_4+d:Assessment of surface limitations and multilayer membrane architectures, Solid State Ionics, 2009, vol. 180, p. 812-816.

2008

• V.V. Kharton, A.V. Kovalevsky, M.V. Patrakeev, E.V. Tsipis, A.P. Viskup, V.A. Kolotygin, A.A. Yaremchenko, A.L. Shaula, E.A. Kiselev, J.C. Waerenbourgh, Oxygen nonstoichiometry, mixed conductivity, and Mossbauer spectra of Ln_0.5A_0.5FeO_3-d (Ln=La-Sm, A= Sr, Ba): Effects of cation size, Chem. Mater., 2008, vol. 20, p. 6457-6467.

• A.A. Yaremchenko, A.V. Kovalevsky, V.V. Kharton, Mixed conductivity, stability and electrochemical behaviour of perovskite-type (Sr_0.7Ce_0.3)_1-xMn_1-yCr_yO_3-d, Solid State Ionics, 2008, vol. 179, p. 2181-2191.

• D. Ivanova, A. Kovalevsky, V.V. Kharton, F.M.B. Marques, Silica-scavenging effects in ceria-based solid electrolytes, Boletin de la Sociedad Espanola de Ceramica y Vidrio, 2004, vol. 47, pp.201-206.

• A.A. Yaremchenko, D.O. Bannikov, A.V. Kovalevsky, V.A. Cherepanov, V.V. Kharton, High-temperature transport properties, thermal expansion and cathodic performance of Ni- substituted LaSr₂Mn₂O_7-d, J. Solid State Chemistry, 2008, vol. 181, p. 3024-3032.

• A.V. Kovalevsky, V.V. Kharton, F.M.M. Snijkers, J.F.C. Cooymans, J.J. Luyten, J.R. Frade, Processing and oxygen permeability of asymmetric ferrite-based ceramic membranes, Solid State Ionics, 2008, vol. 179, p. 61-65.

• D. Ivanova, E.M.C.L.G.P. Lima, A. Kovalevsky, F.M.L. Figueiredo, V.V. Kharton, F.M.B. Marques, Heterogeneous ceramics formed by grain boundary engineering, Ionics, 2008, vol. 14, p. 349-356.

2007

• A.V. Kovalevsky, V.V. Kharton, F.M.M. Snijkers, J.F.C. Cooymans, J.J. Luyten, F.M.B. Marques, Oxygen transport and stability of asymmetric SrFe(Al)O_3-d - SrAl₂O₄ composite membranes, J. Membr. Sci., 2007, vol. 301, pp. 238-244.

• A.V. Kovalevsky, V.V. Kharton, A.A. Yaremchenko, Y.V. Pivak, E.V. Tsipis, S.O. Yakovlev, A.A. Markov, E.N. Naumovich and  J.R. Frade, Oxygen permeability, stability and electrochemical behavior of Pr₂NiO_4+d – based materials, J. Electroceramics, 2007, vol. 18, pp. 205-218.

• A.V. Kovalevsky, V.V. Kharton, A.A. Yaremchenko, Y.V. Pivak, E.N. Naumovich, J.R. Frade, Stability and oxygen transport properties of Pr₂NiO_4+δ ceramics, J. European Ceram. Soc., vol. 27, 2007, pp. 4269-4272.

• V.V. Kharton, A.V. Kovalevsky, M. Avdeev, E.V. Tsipis, M.V. Patrakeev, A.A. Yaremchenko, E.N. Naumovich and J.R. Frade, Chemically induced expansion of La₂NiO_4+d - based materials, Chem. Mater., 2007, vol. 19, pp. 2027-2033.

• V.V. Kharton, J.C. Waerenborgh, A.V. Kovalevsky, G.C. Mather, A.P. Viskup, M.V. Patrakeev, P. Gaczyński, A.A. Yaremchenko and V.V. Samakhval,Redox behavior and transport properties of    La_0.5-2xCe_xSr_0.5+xFeO_3-d and La_0.5-2ySr_0.5+2yFe_1-yNb_yO_3-d perovskites, Solid State Sciences, 2007, vol. 9, pp. 32-42.

• S. Yakovlev, V. Kharton, A.A. Yaremchenko, A. Kovalevsky, E. Naumovich, J. Frade, Mixed conductivity, thermal expansion and defect chemistry of A-site deficient LaNi0.5Ti0.5O3-δ, J. Eur. Ceram. Soc., 2007, vol. 27, pp. 4279-4282.

• V.V. Kharton, M.V. Patrakeev, J.C. Waerenborgh, A.V. Kovalevsky, Y.V. Pivak, P. Gaczyński, A.A. Markov and A.A. Yaremchenko, Oxygen nonstoichiometry, Mössbauer spectra and mixed conductivity of Pr_0.5Sr_0.5FeO_3−δ, J. Phys. Chem. Solids, 2007, vol. 68, pp. 355-366.

• Y.V. Pivak, V.V. Kharton, A.A. Yaremchenko, S.O. Yakovlev, A.V. Kovalevsky, J.R. Frade and F.M.B. Marques, Phase relationships and transport in Ti-, Ce- and Zr-substituted lanthanum silicate systems, J. Eur. Ceram. Soc., 2007, vol. 27 (6), pp. 2445-2454.

2006

• A.V. Kovalevsky, F. M. B. Marques, V. V. Kharton, F. Maxim and J. R. Frade, Silica-scavenging effect in zirconia electrolytes: assessment of lanthanum silicate formation, Ionics, 2006, vol. 12(3), pp. 179-184.

• A.V. Kovalevsky, V.V. Kharton, F. Maxim, A.L. Shaula and J.R. Frade, Processing and characterization of La_0.5Sr_0.5FeO₃-supported Sr_1-xFe(Al)O₃-SrAl₂O₄ composite membranes, Journal of Membrane Science, 2006, vol. 278 (1-2), pp. 162-172.

• A.V. Kovalevsky, D.V. Sviridov, V.V. Kharton, E.N. Naumovich and J.R. Frade, Oxygen evolution on perovskite-type cobaltite anodes: an assessment of materials science-related aspects, Materials Science Forum, 2006, vol. 514-516, pp. 377-381.

• V.V. Kharton, A.P. Viskup, A.V. Kovalevsky, A.L. Shaula, J.R. Frade and F.M.B. Marques, Mixed conductivity of Ce- and Nb-substituted (La,Sr)FeO_3-d, Materials Science Forum, 2006, vol. 514-516, pp. 402-406.

• V.V. Kharton, A.V. Kovalevsky, A.A. Yaremchenko, F.M.M. Snijkers, J.F.C. Cooymans, J.J. Luyten, A.A. Markov, J.R. Frade and F.M.B. Marques, Oxygen transport and thermomechanical properties of SrFe(Al)O_3-δ-SrAl₂O₄ composites: microstructural effects, Journal of Solid State Electrochemistry, 2006, vol. 10(8), pp. 663-673.

• A.A. Yaremchenko, V.V. Kharton, A.A. Valente, E.V. Frolova, M.I. Ivanovskaya, A.V. Kovalevsky, F.M.B. Marques and  J. Rocha, Methane oxidation over nanocrystalline Ce_0.45Zr_0.45La_0.10O_2-d/Pt and Ce_0.9Sm_0.1O_2-d/Pt anodes, Cat. Lett., 2006, vol. 112 (1-2), pp. 19-26.

• F.M.B. Marques, V.V. Kharton, E.N. Naumovich, A.L. Shaula, A.V. Kovalevsky, A.A. Yaremchenko, Oxygen ion conductors for fuel cells and membranes: selected developments, Solid State Ionics, 2006, vol. 177 (19-25), pp. 1697-1703.

• S.O. Yakovlev, V.V. Kharton, E.N. Naumovich, J. Zekonyte, V. Zaporojtchenko, A.V. Kovalevsky, A.A. Yaremchenko and  J.R. Frade, Defect formation and transport in La_0.95Ni_0.5Ti_0.5O_3-d, Solid State Sciences, 2006, vol. 8 (11), pp. 1302-1311.

• A.L. Shaula, V.V Kharton, F.M.B. Marques, A.V. Kovalevsky, A.P. Viskup, E.N. Naumovich, Oxygen permeability of mixed-conducting composite membranes: effects of phase interaction, Journal of Solid State Electrochemistry, 2006, vol. 10 (1), pp. 28-40.

• A.A. Yaremchenko, V.V. Kharton, E.N. Naumovich, D.I. Shestakov, V.F. Chukharev, A.V. Kovalevsky, A.L. Shaula, J.R. Frade and F.M.B. Marques, Mixed conductivity, stability and thermomechanical properties of Ni-doped La(Ga,Mg)O_3-d, Solid State Ionics, 2006, vol. 177 (5-6), pp. 549-558.

2004

• J.R. Frade, V.V.Kharton, A.A. Yaremchenko, E.V. Tsipis, A.L. Shaula, E.N. Naumovich, A.V. Kovalevsky, F.M.B. Marques, Mixed conducting materials for partial oxidation of hydrocarbons, Boletin de la Sociedad Espanola de Ceramica y Vidrio, 2004, vol. 43, pp.640-643.

• A.A. Yaremchenko, A.L. Shaula, V.V. Kharton, A.V. Kovalevsky, E.N. Naumovich, J.R. Frade and F.M.B.Marques, Oxygen permeability of transition metal-containing La(Sr,Pr)Ga(Mg)O_3-d ceramic membranes, Boletin de la Sociedad Espanola de Ceramica y Vidrio, 2004, vol. 43, pp. 769-774.

• A.L. Shaula, V.V. Kharton, F.M.B. Marques, A.V. Kovalevsky, A.P. Viskup and E.N. Naumovich, Phase interaction and oxygen transport in oxide composite materials, British Ceramic Transactions, 2004, vol. 103, pp. 211-218.

2003

• V.V. Kharton, A.V. Kovalevsky, A.P. Viskup, A.L. Shaula, F.M. Figueiredo, E.N. Naumovich, F.M.B. Marques. Oxygen transport in Ce_0.8Gd_0.2O_2-d -based composite membranes, Solid State Ionics 160, 2003, pp. 247-258.

• A.L. Shaula, A.A. Yaremchenko, V.V. Kharton, D.I. Logvinovich, E.N. Naumovich, A.V. Kovalevsky, J.R. Frade and F.M.B. Marques, Oxygen permeability of LaGaO₃-based ceramic membranes, Journal of Membrane Science, 2003, vol. 221, pp.69-77.

• A.A. Yaremchenko, A.L. Shaula, D.I. Logvinovich, V.V. Kharton, A.V. Kovalevsky, E.N. Naumovich, J.R. Frade, F.M.B. Marques, Oxygen-ionic conductivity of perovskite-type La_1-xSr_xGa_1-yMg_yM_0.20O_3-d (M=Fe, Co, Ni), Materials Chemistry and Physics 82, 2003, pp. 684-690.

• V.V.Kharton, A.V. Kovalevsky, E.V.Tsipis, A.P.Viskup, E.N.Naumovich, J.R.Jurado and J.R.Frade, Mixed conductivity and stability of A-site-deficient Sr(Fe,Ti)O_3-d perovskites, Journal of Solid State Electrochemistry, 2003, vol.7, pp.30-36.

2002

• V.V.Kharton, A.V. Kovalevsky, A.A.Yaremchenko, F.M.Figueiredo, E.N.Naumovich, A.L.Shaulo and F.M.B.Marques, Surface modification of La_0.3Sr_0.7CoO_3-d ceramic membranes, Journal of Membrane Science, 2002, vol.195, pp.277-287.

• V.N. Tikhonovich, E.N.Naumovich, V.V.Kharton, A.A.Yaremchenko, A.V. Kovalevsky and A.A. Vecher, Oxygen nonstoichiometry of Bi₂V_0.9Cu_0.1O_5.5-d solid electrolyte by coulometric titration technique, Electrochimica Acta, 2002, vol. 47, pp. 3957-3964.

• A.A.Yaremchenko, M.Avdeev, V.V.Kharton, A.V. Kovalevsky, E.N.Naumovich and F.M.B.Marques, Structure and electronic conductivity of Bi_2-xLa_xV_0.9Cu_0.1O_5.5-d, Materials Chemistry and Physics, 2002, vol.77, pp.552-558.

• V.V. Kharton, A.A. Yaremchenko, A.P. Viskup, F.M. Figueiredo, A.L. Shaulo, A.V. Kovalevsky, E.N. Naumovich and F.M.B. Marques, p-type electronic conduction in CeO₂- and LaGaO₃-based solid electrolytes, Ionics, 2002, vol. 8, pp. 215-222.

2001

• V.V.Kharton, A.V. Kovalevsky, A.P.Viskup, J.R.Jurado, F.M.Figueiredo, E.N.Naumovich and J.R.Frade, Transport properties and thermal expansion of Sr_0.97Ti_1-xFe_xO_3-d (x= 0.2-0.8), Journal of Solid State Chemistry, 2001, vol. 156, pp.437-444.

• V.V.Kharton, F.M.Figueiredo, L.Navarro, E.N.Naumovich, A.V. Kovalevsky, A.A.Yaremchenko, A.P.Viskup, A.Carneiro, F.M.B.Marques anJ.R.Frade, Ceria-based materials for solid oxide fuel cells, Journal of Materials Science, 2001, vol. 36, pp. 1105-1117.

• V.V.Kharton, A.V. Kovalevsky, A.P.Viskup, F.M.Figueiredo, A.A.Yaremchenko, E.N.Naumovich and F.M.B.Marques, Oxygen permeability and Faradaic efficiency of Ce_0.8Gd_0.2O_2-d - La_0.7Sr_0.3MnO_3-d composites, Journal of the European Ceramic Society, 2001, vol. 21, pp. 1763-1767.

• D.P. Fagg, V.V. Kharton, A.V. Kovalevsky, A.P. Viskup, E.N. Naumovich and J.R. Frade, The stability and mixed conductivity in La and Fe doped SrTiO₃ in the search for potential SOFC anode materials, Journal of the European Ceramic Society, 2001, vol. 21, pp. 1831-1835.
• V.V.Kharton, F.M.Figueiredo, A.V.Kovalevsky, A.P.Viskup, E.N.Naumovich, A.A.Yaremchenko, I.A.Bashmakov and F.M.B.Marques, Processing, microstructure and properties of LaCoO_3-d ceramics, Journal of the European Ceramic Society, 2001, vol. 21, pp. 2301-2309.

• V.V.Kharton, A.P.Viskup, A.V.Kovalevsky, E.N.Naumovich and F.M.B.Marques, Ionic transport in oxygen-hyperstoichiometric phases with K₂NiF₄-type structure, Solid State Ionics, 2001, vol. 143, pp. 337-353.

2000

• V.V.Kharton, A.V. Kovalevsky, A.P.Viskup, F.M.Figueiredo, A.A.Yaremchenko, E.N.Naumovich and F.M.B.Marques, Oxygen permeability of Ce_0.8Gd_0.2O_2-d - La_0.7Sr_0.3MnO_3-d composite membranes, Journal of the Electrochemical Society, 2000, vol.147, pp.2814-2821.

• V.V.Kharton, A.P.Viskup, A.V. Kovalevsky, F.M.Figueiredo, J.R.Jurado, A.A.Yaremchenko,  E.N.Naumovich and J.R.Frade,  Surface-limited ionic transport in perovskites Sr_0.97(Ti,Fe,Mg)O_3-d, Journal of Materials Chemistry, 2000, vol.10, pp. 1161-1169.

• V.V.Kharton, A.V. Kovalevsky, A.P.Viskup, F.M.Figueiredo, J.R.Frade, A.A.Yaremchenko and E.N.Naumovich, Faradaic efficiency and oxygen permeability of Sr_0.97Ti_0.60Fe_0.40O_3-d perovskite, Solid State Ionics, 2000, vol.128, pp. 117-130.

• V.V.Kharton, A.P.Viskup, A.V. Kovalevsky, J.R.Jurado, E.N.Naumovich, A.A.Vecher and J.R.Frade, Oxygen ionic conductivity of Ti-containing strontium ferrite, Solid State Ionics, 2000, vol.133, pp.57-65.

• V.V.Kharton, E.N.Naumovich, A.V. Kovalevsky, A.P.Viskup, F.M.Figueiredo, I.A.Bashmakov and F.M.B.Marques, Mixed electronic and ionic conductivity of LaCo(M)O₃ (M= Ga, Cr, Fe or Ni). IV. Effect of preparation method on oxygen transport in LaCoO_3-d. Solid State Ionics, 2000, vol. 138, pp.135-148.

• A.A.Yaremchenko, V.V.Kharton, A.V. Kovalevsky, N.M.Lapchuk and E.N.Naumovich, EPR spectra and electrical conductivity of perovskite-like BaBi_1-xLn_xO_3-d , Materials Chemistry and Physics, 2000, vol.63, pp.240-250.

• V.V.Kharton, F.M.Figueiredo, A.V. Kovalevsky, A.P.Viskup, E.N.Naumovich, J.R.Jurado and J.R.Frade, Oxygen diffusion in, and thermal expansion of, SrTiO_3-d- and CaTiO_3-d-based materials, Defect and Diffusion Forum, 2000, vol.186-187, pp.119-136.

1999

• V.V.Kharton, A.A.Yaremchenko, A.V. Kovalevsky, A.P.Viskup, E.N.Naumovich and P.F.Kerko, Perovskite-type oxides for high-temperature oxygen separation membranes, Journal of Membrane Science, 1999, vol.163, pp.307-317.

• V.V.Kharton, E.N.Naumovich, V.N.Tikhonovich, I.A.Bashmakov, L.S.Boginsky and A.V.Kovalevsky, Testing tubular solid oxide fuel cells in nonsteady-state conditions, Journal of Power Sources, 1999, vol.77, pp.242-249.

• D.M.Bochkov, V.V.Kharton, A.V. Kovalevsky, A.P.Viskup and E.N.Naumovich, Oxygen permeability of La₂Cu(Co)O_4+d solid solutions, Solid State Ionics, 1999, vol. 120, pp.281-288.

• V.V.Kharton, A.P.Viskup, A.A. Yaremchenko, P.F.Kerko, E.N.Naumovich and A.V. Kovalevsky, Ionic transport in SrCo_0.85Ti_0.15O_3-d ceramics at high oxygen pressures, Materials Research Bulletin, 1999, vol.34, pp.1921-1928.

• A.V. Kovalevsky, V.V.Kharton and E.N.Naumovich, Oxygen ion conductivity of hexagonal La₂W_1.25O_6.75, Materials Letters, 1999, vol.38, pp.300-304.

1998

• V.V.Kharton, V.N.Tikhonovich, Li Shuangbao, E.N.Naumovich, A.V. Kovalevsky, A.P.Viskup, I.A.Bashmakov and A.A.Yaremchenko, Ceramic microstructure and oxygen permeability of SrCo(Fe,M)O_3-d (M= Cu or Cr) perovskite membranes, Journal of the Electrochemical Society, 1998, vol.145, pp.1363-1374.

• A. V. Kovalevsky, V. V. Kharton, V. N. Tikhonovich, E. N. Naumovich, A. A. Tonoyan, O. P. Reut and L. S. Boginsky, Oxygen permeation through Sr(Ln)CoO_3−δ (Ln=La, Nd, Sm, Gd) ceramic membranes, Materials Science and Eng. B, 1998, vol. 52, pp. 105-116.

• V.V.Kharton, A.V. Kovalevsky, V.N.Tikhonovich, E.N.Naumovich and A.P.Viskup, Mixed electronic and ionic conductivity of LaCo(M)O₃ (M= Ga, Cr, Fe or Ni). II. Oxygen permeation through Cr- and Ni-substituted LaCoO₃, Solid State Ionics, 1998, vol. 110, pp.53-60.

• V.V.Kharton, Li Shuangbao, A.V. Kovalevsky, A.P.Viskup, E.N.Naumovich and A.A.Tonoyan, Oxygen permeability and thermal expansion of SrCo(Ti)O_3-d perovskites, Materials Chemistry and Physics, 1998, vol.53, pp.6-12.

1997

• V.V.Kharton, Li Shuangbao, A.V. Kovalevsky and E.N.Naumovich, Oxygen permeability of perovskites in the system SrCoO_3-d - SrTiO₃, Solid State Ionics, 1997, vol.96, pp.141-152.

• E.N.Naumovich, V.V.Kharton, V.V.Samokhval and A.V. Kovalevsky, Oxygen separation using Bi₂O₃-based solid electrolytes, Solid State Ionics, 1997, vol.93, pp.95-103.

• A.V. Kovalevsky, V.V. Kharton, E.N. Naumovich, Oxygen–ionic permeability of the Sr_0.7Ln_0.3CoO_3–d (Ln = La, Nd, Sm, Gd) solid solutions with the perovskite structure, Russian Journal of Electrochemistry, 1997, vol. 33(2), pp. 170-174.

1996

• A.V. Kovalevsky, V.V.Kharton and E.N.Naumovich, Ionic and electronic conductivity of Ce(Gd,Co)O₂ ceramics, Inorganic Materials, 1996, vol. 32, pp.1230-1233.

Proceedings of international conferences:

• C. Buysse, A. Kovalevsky, A. Buekenhoudt, F. Snijkers, S. Mullens, J. Luyten, Development and performance of BSCF capillaries for high temperature oxygen separation from air, Proc. 20^th Annual Meeting of the North American Membrane Society and 11^th International Conference on Inorganic Membranes, 2010, pp. 297-298.

• V.V. Kharton, A.A. Yaremchenko, A.P. Viskup, F.M. Figueiredo, A.V. Kovalevsky, E.N. Naumovich and F.M.B. Marques, Role of grain boundaries in oxygen ionic transport in mixed-conducting ceramics. In: "Grain Boundary Engineering of Electronic Ceramics", Eds. R. Freer, J. Van Herle, J. Petzelt and C. Leach, British Ceramic Proceedings, No 63. Maney Publ., Leeds, 2003, pp. 27-36.

• A.V. Kovalevsky, V.V.Kharton, A.P.Viskup, P.F.Kerko, E.N.Naumovich and A.A.Vecher, Oxygen permeability of oxide materials at high oxygen partial pressures, In: Proc. 5th International Meeting “Basic Problems of Solid State Ionics” (Chernogolovka, Russia, 11-13.5.2000), Eds. A.E.Ukshe, N.G.Bukun, A.M.Mikhailova, Institute of Chemical Physics of RAS, Chernogolovka, 2000, pp.48-52 [in Russian].

• E.N.Naumovich, V.V.Kharton, A.V.Kovalevsky and V.V.Samokhval, Fluorite-like mixed conductors in the systems Bi(Y,M)O_1.5±d (M= Pr, Co) and Ce(Gd,Me)O_2-d (Me= Co, Mn), in: “Ionic and Mixed Conducting Ceramics III”, Proc. 3^rd Int.Symp. on Ionic and Mixed Conducting Ceramics, Eds.T.A.Ramanarayanan, W.L.Worrell, H.L.Tuller, A.C.Krandkar, M.Mogensen and W.Gopel, PV97-24, The Electrochemical Society, Pennington, NJ, 1998, pp.496-508.

• V.V.Kharton, A.V.Kovalevsky, A.P.Viskup, E.N.Naumovich and O.P.Reut, Oxygen permeation through perovskite-like SrCo(M)O_3-d (M= Ti, V, Cr, Fe, Cu) and Sr(Ln)CoO_3-d (Ln= La, Nd, Sm, Gd), in: “Ionic and Mixed Conducting Ceramics III”, Proc. 3^rd Int.Symp. on Ionic and Mixed Conducting Ceramics, Eds.T.A.Ramanarayanan, W.L.Worrell, H.L.Tuller, A.C.Krandkar, M.Mogensen and W.Gopel, PV97-24, The Electrochemical Society, Pennington, NJ, 1998, pp. 736-750.

• A.V. Kovalevsky, V.V. Kharton, Li Shuangbao and E.N. Naumovich, Oxygen ion transport in SrTi(Co)O_3-d perovskites, Proc.Int.Conf. "Electroceramics-V" (Aveiro, Portugal, 2-4 Sept.1996), pp.199-202.

• E.N.Naumovich, V.V.Kharton, A.V.Kovalevsky and V.V.Samokhval, Conjugate transport of oxygen ions and electrons in fluorite-type ceramics Ce(Gd,M)O₂ (M = Co, Mn), in: "High Temperature Electrochemistry: Ceramics and Metals", Proc. 17th Riso Int. Symp. on Materials Science, Eds.F.Poulsen, N.Bananos, S.Linderoth, M.Mogensen and B.Zachau-Christiansen (Roskilde, Denmark, September 2-6, 1996), pp.375-380.

Other refereed journals

• A.A.Yaremchenko, V.V.Kharton, A.P.Viskup, A.V.Kovalevsky, E.N.Naumovich and A.A.Vecher, Physicochemical properties of magnesium-doped lanthanum cobaltite, Vestnik BGU (Letters of Belarus State University), seriya 2, 2001, No 1, pp.20-24.

2019: Organizing Committee, CICECO Jornadas 2019, Aveiro, Portugal.

2014 - Organizing Committee of the 19th Meeting of the Portuguese Electrochemical Society, Aveiro, Portugal.

2017-2020: More than 10 invited/keynote presentations at the international meetings and workshops.