Conductivity of SrCrO4 and its influence on deterioration of electrochemical performance of cathodes in solid oxide fuel cells

W. Liu, E. Yu Konysheva

Research output: Contribution to journalConference articlepeer-review

17 Citations (Scopus)

Abstract

SrCrO4 crystallizes in monoclinic space group P21/n and under static air exhibits a low total conductivity (1.8 × 10-4 Ohm-1× cm-1 at 800 °C). Composites fabricated from La0.58Sr0.4Co0.2Fe0.8O3 perovskite and SrCrO4 remain two phases after heating at 900 °C for a short period of time. Model experiments were carried out to identify an influence of current load on the stability of SrCrO4 surface layer and redistribution of chromium between the surface and volume of cathode, thereby giving insight in to the mechanism of Cr-poisoning of Co-containing perovskite cathodes.

Original languageEnglish
Pages (from-to)327-332
Number of pages6
JournalECS Transactions
Volume59
Issue number1
DOIs
Publication statusPublished - 2014
Externally publishedYes
Event2014 Electrochemical Conference on Energy and the Environment, ECEE 2014 - Shanghai, China
Duration: 13 Mar 201416 Mar 2014

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