Development of ceria-based direct ethanol intermediate-temperature solid oxide fuel cell
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2018
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BRAZILIAN MRS MEETING, 17th
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Resumo
Solid oxide fuel cells (SOFCs) have several advantages over traditional energygenerating
devices. A key property is the possibility of using various fuels such as
natural gas and ethanol, which are strategic for Brazil. This study addresses two
aspects that need to be improved in SOFC: (a) the high operating temperature of
the cell that brings several problems for assembly and operation of a power
system, and (b) the deactivation of the cell due to the deposition of carbon on the
surface of the nickel anode when the cell is fed with carbon-containing fuels. The
properties of ceria-based/Ni cermets both as the anode material and as the
catalytic layer for bio-ethanol fueled SOFC with yttria-stablilized zirconia
electrolyte were investigated. Ceria-based/Ni cermets were studied as the
catalytic layer deposited onto the standard yttria-stabilized zirconia/Ni anode for
direct ethanol SOFCs. Properties of both Zr- and Nb-doped (10 mol%) ceria / Ni
(15 vol%) cermets were investigated as the catalytic layer in direct ethanol
SOFCs. Electrolyte-supported fuel cells with doped-ceria /Ni catalytic layer were
tested for ~100 hours under (dry) ethanol. Fuel cells using the different ceria/Ni
cermets showed excellent stability on ethanol. The promising results obtained
with ceria-based anodes for SOFC of ethanol motivated the development of ceriabased
SOFCs. Thus, intermediate-temperature SOFCs using doped-ceria
electrolytes have been tested at 600 °C using hydrogen. Preliminary results show
that direct ethanol SOFC are promising devices for efficient energy conversion at
intermediate temperatures.
Como referenciar
TABUTI, FRANCISCO N.; PEREIRA, VICTORIA B.; PIAZZOLLA, FERNANDO; FONSECA, FABIO C. Development of ceria-based direct ethanol intermediate-temperature solid oxide fuel cell. In: BRAZILIAN MRS MEETING, 17th, September 16-20, 2018, Natal, RN. Abstract... São Carlos: Aptor Software, 2018. p. 142-142. Disponível em: http://repositorio.ipen.br/handle/123456789/30326. 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.