A highly active CH4catalyst correlated with solid oxide fuel cell anode performance

Yuanhui Su, Tao Wei, Yining Li, Baoyi Yin, Yu Huan, Dehua Dong, Xun Hu, Bolong Huang (Corresponding Author)

Research output: Journal article publicationJournal articleAcademic researchpeer-review

2 Citations (Scopus)

Abstract

Methane catalytic abilities are considered to be an important and direct form of experimental evidence for evaluating the efficacy of mixed oxide-ion/electron conductors (MIEC) as anode materials for solid oxide fuel cells (SOFCs) with CH4as the fuel gas. Therefore, a direct link between the quantifiable methane-conversion abilities and CH4-based SOFC electrochemical performance is urgently needed. Here, H2-reduced Sr2ZnMoO6(R-SZMO) as an anode example exhibits excellent catalytic abilities and tolerance to coking when using CH4as the fuel gas, which is dominated by the formation of intrinsic anion-Frenkel defect pairs. DFT calculations reveal that the efficient electron transfer process and optimal selectivity towards CH4conversion are both on the R-SZMO (110) surface. Therefore, applying high CH4activity R-SZMO as the anode catalyst gives excellent anti-carbon deposition performance, high power output, and long-term stability for SOFCs with CH4as the fuel gas.

Original languageEnglish
Pages (from-to)5067-5074
Number of pages8
JournalJournal of Materials Chemistry A
Volume9
Issue number8
DOIs
Publication statusPublished - 28 Feb 2021

ASJC Scopus subject areas

  • Chemistry(all)
  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

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