Evaluation of Fe-doped CGO electrolyte for application in IT-SOFCs
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2019
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ECS Transactions
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A challenge encountered with intermediate temperature solid oxide
fuel cells (IT-SOFCs) is lowering the densification temperature of
the doped ceria electrolyte and improving its ionic conductivity.
Ceria doped with 10 mol% gadolinium oxide and 0, 1, 5 mol% iron
oxide were synthesized by a low temperature precipitation route
based on hexamethylenetetramine as the precipitating agent. The
as-synthesized precursors are nanocrystalline powders with a
homogeneous morphology. Co-doping with Fe3+ changes the
sintering behaviour of the doped cerium oxide and favours
densification at lower temperatures. Through a comprehensive
elementary, structural, microstructural and electrochemical
analysis of the co-doped cerium oxide, it was established the
doping mechanism of Fe3+ and its effect on the bulk and grain
boundary conductivities. The overall aim is to evaluate its
suitability for application as an electrolyte in IT-SOFC applications.
Como referenciar
MACHADO, M.; MORAES, L.P.R.; RODRIGUES, L.N.; TABANEZ, M.; FERRAZOLI, M.; FONSECA, F.C. Evaluation of Fe-doped CGO electrolyte for application in IT-SOFCs. ECS Transactions, v. 91, n. 1, p. 1209-1216, 2019. DOI: 10.1149/09101.1209ecst. Disponível em: http://repositorio.ipen.br/handle/123456789/30856. Acesso em: 19 Apr 2024.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.