Oxidation-induced degradation of SOFC Ni anodes at high fuel utilizations

T. Kawasaki, J. Sugimoto, Y. Tachikawa, Y. Shiratori, S. Taniguchi, K. Sasaki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

In the downstream of SOFC systems, higher oxygen partial pressure can cause oxidation-induced Ni anode degradation. In this study, we have investigated cell performance at high fuel utilizations for simulating situations around the system downstream. When the anode voltage was higher than a voltage threshold, the cell performance was stable. On the other hand, it became unstable associated with cell voltage oscillation when anode voltage was around or less than the threshold value. The threshold value was consistent with the anode potential derived from the oxygen partial pressure at the phase boundary at which both Ni and NiO coexist.

Original languageEnglish
Title of host publicationSolid Oxide Fuel Cells 14, SOFC 2015
EditorsK. Eguchi, S. C. Singhal
PublisherElectrochemical Society Inc.
Pages1345-1352
Number of pages8
Edition1
ISBN (Electronic)9781607685395
DOIs
Publication statusPublished - Jan 1 2015
Event14th International Symposium on Solid Oxide Fuel Cells, SOFC 2015; held as part of the Electrochemical Society, ECS Conference on Electrochemical Energy Conversion and Storage - Glasgow, United Kingdom
Duration: Jul 26 2015Jul 31 2015

Publication series

NameECS Transactions
Number1
Volume68
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

Other14th International Symposium on Solid Oxide Fuel Cells, SOFC 2015; held as part of the Electrochemical Society, ECS Conference on Electrochemical Energy Conversion and Storage
CountryUnited Kingdom
CityGlasgow
Period7/26/157/31/15

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Kawasaki, T., Sugimoto, J., Tachikawa, Y., Shiratori, Y., Taniguchi, S., & Sasaki, K. (2015). Oxidation-induced degradation of SOFC Ni anodes at high fuel utilizations. In K. Eguchi, & S. C. Singhal (Eds.), Solid Oxide Fuel Cells 14, SOFC 2015 (1 ed., pp. 1345-1352). (ECS Transactions; Vol. 68, No. 1). Electrochemical Society Inc.. https://doi.org/10.1149/06801.1345ecst