Journal Article

PreJuSER-59888

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png An Efficient Ceramic-based Anode for Solid Oxide Fuel Cells

Fu, Q. X.FZJ* ; Tietz, F.FZJ* ; Tao, S. W. ; Irvine, J. T. S.

2007
Elsevier New York, NY [u.a.]

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Please use a persistent id in citations: doi:10.1016/j.jpowsour.2007.06.159

Abstract: A new ceramic-based multi-component material, containing one electronic conductor (Y-substituted SrTiO3, SYT), one ionic conductor (YSZ) and a small amount (similar to 5 vol.%) of Ni catalyst, was investigated as an alternative anode material for solid oxide fuel cells (SOFCs). The ceramic framework SYT/YSZ shows good dimensional stability upon redox cycling and has an electrical conductivity of similar to 10 S cm(-1) under typical anode conditions. Owing to the substantial electrocatalytic activity of the fine and well-dispersed Ni particles on the surface of the ceramic framework, the electrode polarization resistance of 5 vol.% Ni-impregnated SYT/YSZ anode reached 0.21 Omega cm(2) at 800 degrees C in wet Ar/5%H-2. Based on these results, a redox-stable anode-supported planar SOFC is expected using this anode material, thus offering great advantages over the current generation of Ni/YSZ-based SOFCs. (C) 2007 Elsevier B.V. All rights reserved.

Keyword(s): J ; ceramic (auto) ; electrochemical property (auto) ; anode material (auto) ; redox (auto) ; solid oxide fuel cells (auto)

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Werkstoffsynthese und Herstellungsverfahren (IEF-1)

Research Program(s):

1. Rationelle Energieumwandlung (P12)
2. SOFC - Solid Oxide Fuel Cell (SOFC-20140602) (SOFC-20140602)

Appears in the scientific report 2007

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