An Aurivillius oxide based cathode with excellent CO2 tolerance for intermediate-temperature solid oxide fuel cells

Yinlong Zhu, Wei Zhou, Yubo Chen, Zongping Shao

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43 Citations (Scopus)

Abstract

The Aurivillius oxide Bi2Sr2Nb2MnO12−δ(BSNM) was used as a cobalt-free cathode for intermediate-temperature solid oxide fuel cells (IT-SOFCs). To the best of our knowledge, the BSNM oxide is the only alkaline-earth-containing cathode material with complete CO2tolerance that has been reported thus far. BSNM not only shows favorable activity in the oxygen reduction reaction (ORR) at intermediate temperatures but also exhibits a low thermal expansion coefficient, excellent structural stability, and good chemical compatibility with the electrolyte. These features highlight the potential of the new BSNM material as a highly promising cathode material for IT-SOFCs.

Original languageEnglish
Pages (from-to)8988-8993
Number of pages6
JournalAngewandte Chemie - International Edition
Volume55
Issue number31
DOIs
Publication statusPublished - 1 Jan 2016
Externally publishedYes

Keywords

  • Aurivillius oxides
  • cathodes
  • electrochemistry
  • oxygen reduction reaction
  • solid oxide fuel cells

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