resumo
A recent commentary suggesting mishandled literature data in the analysis of the performance of composites including salts (alkaline carbonates) and oxides (pure ceria) is shown here as invalid. Even inadequately invoked data for the salt conductivity is shown to remain below the required performance. This conclusion is inevitable when due attention is paid to the salt volume fraction (50 vol%) and electrical pathway (tortuosity, >= 2) within the composite, both decreasing the effective electrical conductivity with respect to the fully dense salt. Furthermore, newly invoked data is inadequate for not being representative of the properties of the salt under analysis, including mismatching chemical composition and electrical performance. Other issues transgressing usual standards in scientific communications are also shortly addressed. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
palavras-chave
CARBONATE; ELECTROLYTE; PHASE; STABILITY; MEMBRANES; SYSTEMS
categoria
Chemistry; Electrochemistry; Energy & Fuels
autores
Rondao, AIB; Martins, NCT; Patricio, SG; Marques, FMB
nossos autores
Ana Inês Batista Lourenço Rondão
Bolseiro de pós-Doutoramento
Fernando Manuel Bico Marques
Professor Catedrático
Natércia da Conceição Tomé Martins
Investigador Júnior
Sónia Gonçalves Patrício
Investigador AuxiliarGrupos
G1 - Materiais Porosos e Nanossistemas
G3 - Materiais Eletroquímicos, Interfaces e Revestimentos
G5 - Materiais Biomiméticos, Biológicos e Vivos
Projectos
Multi-Functional Nanocomposite Materials For Low-Temperature Ceramic Fuel Cells (NANOMFC )
agradecimentos
Work performed with funding from Projects NANOMFC (New-INDIGO/0001/2013) and CICECO-Aveiro Institute of Materials (Ref. FCT UID/CTM/50011/2013), financed by national funds through the FCT/MEC and when appropriate co-financed by FEDER under the PT2020 Partnership Agreement. S.G. Patricio and A.I.B. Ronda. thank FCT for the grants SFRH/BPD/75943/2011 and SFRH/BDE/52139/2013, respectively. The authors would like also to express their special appreciation to several members of the wider scientific community that helped in finding relevant information handled in this Rebuttal.