Alternative Ni-Alloy Cermet Anode Materials for SOFCs
Solid oxide fuel cell (SOFC) is a promising electrochemical energy conversion device that can directly produce electricity from chemical fuels. On the other hand, in the Ni-zirconia cermet currently used for the SOFC anode, the electron conducting pathways through the Ni metal phase can be easily de...
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Published in | ECS transactions Vol. 91; no. 1; pp. 1889 - 1896 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
The Electrochemical Society, Inc
10.07.2019
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Online Access | Get full text |
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Summary: | Solid oxide fuel cell (SOFC) is a promising electrochemical energy conversion device that can directly produce electricity from chemical fuels. On the other hand, in the Ni-zirconia cermet currently used for the SOFC anode, the electron conducting pathways through the Ni metal phase can be easily destroyed by redox processes, where Ni oxidation/reduction (redox) results in significant volume changes, leading to deterioration of the electrochemical performance. In this study, various anodes using Ni-based alloys as alternative materials for Ni are prepared. Their electrochemical performance and redox stability are evaluated. In particular, Ni-Co alloy cermet exhibits better durability against redox cycling. |
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ISSN: | 1938-5862 1938-6737 1938-6737 1938-5862 |
DOI: | 10.1149/09101.1889ecst |