Nickel/gadolinium-doped ceria anode for direct ethanol solid oxide fuel cell
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International Journal of Hydrogen Energy
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This report investigates the properties of nickel/gadolinium-doped ceria (Ni/GDC) as anode
material for bio-ethanol fueled SOFC. The Ni/GDC cermets with 18 and 44 wt.% Ni were
prepared by a hydrothermal method. Ethanol decomposition, steam reforming, and partial
oxidation of ethanol were studied using a fixed-bed reactor at 1123 K. Carbon was formed
only under dry ethanol for both catalysts. The addition of water or oxygen to the feed
inhibited the formation of carbon. Ni/GDC was used as the anode current collector layer
and as a catalytic layer in single cells tests. No deposits of carbon were detected in single
cells with Ni/GDC catalytic layer after 50 h of continuous operation under direct (dry)
ethanol. This result was attributed to the catalytic properties of the Ni/GDC layer and the
operation mechanism of gradual internal reforming, in which the oxidation of hydrogen
provides the steam for ethanol reforming, thus avoiding carbon deposition.
Como referenciar
AUGUSTO, BRUNO L.; NORONHA, FABIO B.; FONSECA, FABIO C.; TABUTI, FRANCISCO N.; COLMAN, RITA C.; MATTOS, LISIANE V. Nickel/gadolinium-doped ceria anode for direct ethanol solid oxide fuel cell. International Journal of Hydrogen Energy, v. 39, p. 11196-11209, 2014. DOI: 10.1016/j.ijhydene.2014.05.088. Disponível em: http://repositorio.ipen.br/handle/123456789/8949. Acesso em: 30 Dec 2025.
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.