resumo
Two-dimensional (2D) transition metal carbides, MXenes, have garnered significant interest for their potential applications in various energy storage and conversion systems. This work presents a novel approach to synthesizing MXene/metal composites via direct etching of MAX phase/metal-Al alloy precursor materials. By combining the Ti3AlC2 MAX phase with metal alloys and optimizing the processing conditions, we demonstrate a scalable method for producing MXene/metal composites with a 3D porous architecture and good mechanical integrity. Electrochemical tests have revealed that these composites exhibit high electrochemical activity toward the hydrogen evolution reaction (HER) and possess substantial areal capacitance, making them promising candidates for energy storage applications. Additionally, this synthesis strategy is adaptable to other MAX phases and metal-Al alloys, enabling the fabrication of customizable MXene/metal composites with tailored nanostructures for a broad range of electrochemical applications.
palavras-chave
HYDROGEN EVOLUTION; ELECTRONIC-STRUCTURE; NANOPOROUS COPPER; MXENE FILMS; CU; DEPOSITION; TI3ALC2; ALLOY; FABRICATION; SURFACE
categoria
Chemistry
autores
Sergiienko, SA; Kovalevsky, AV; Luxa, J; Mosina, K; Wu, B; Constantinescu, G; Azadmanjiri, J; Shcherban, ND; Diyuk, O; Sofer, Z
nossos autores
Andrei Kavaleuski
Investigador principal
Gabriel Constantinescu
Investigador
Sergii Sergiienko
Investigador JúniorProjectos
Collaboratory for Emerging Technologies, CoLab (EMERGING TECHNOLOGIES)
CICECO - Aveiro Institute of Materials (UIDB/50011/2020)
CICECO - Aveiro Institute of Materials (UIDP/50011/2020)
Associated Laboratory CICECO-Aveiro Institute of Materials (LA/P/0006/2020)
agradecimentos
The research leading to these results was supported by the Johannes Amos Comenius Programme, European Structural and Investment Funds, project 'CHEMFELLS V' (No. CZ.02.01.01/00/22_010/0003004). The authors acknowledge the assistance provided by the Advanced Multiscale Materials for Key Enabling Technologies project, supported by the Ministry of Education, Youth, and Sports of the Czech Republic. Project No. CZ.02.01.01/00/22_008/0004558, Co-funded by the European Union. Z.S. was supported by ERC-CZ program (project LL2101) from Ministry of Education Youth and Sports (MEYS). Andrei Kovalevsky acknowledges the support of FEDER Funds through COMPETE 2030 and of the National Funds through FCT - Fundac & atilde;o para a Ciencia e a Tecnologia, under the project COMPETE2030-FEDER-00777900 (FCT ref. 16602), and support of the program Portugal 2020 through European Regional Development Fund (ERDF) in the frame of CENTRO2020 in the scope of the project CENTRO -01-0247-FEDER-181254 and the project CICECO - Aveiro Institute of Materials, UIDB/50011/2020 & UIDP/50011/2020 & LA/P/0006/2020, financed by National Funds through the FCT/MEC (PIDDAC). This work is funded by national funds through FCT - Fundac & atilde;o para a Ciencia e a Tecnologia, I.P., under the project/support UID/00481 - Centre for Mechanical Technology and Automation (TEMA).