Reversible solid oxide fuel cells (R-SOFCs) with chemically stable proton-conducting oxides

Lei Bi, Samir Boulfrad, Enrico Traversa

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

Proton-conducting oxides offer a promising way of lowering the working temperature of solid oxide cells to the intermediate temperate range (500 to 700. °C) due to their better ionic conductivity. In addition, the application of proton-conducting oxides in both solid oxide fuel cells (SOFCs) and sold oxide electrolysis cells (SOECs) provides unique advantages compared with the use of conventional oxygen-ion conducting conductors, including the formation of water at the air electrode site. Since the discovery of proton conduction in some oxides about 30. years ago, the development of proton-conducting oxides in SOFCs and SOECs (the reverse mode of SOFCs) has gained increased attention. This paper briefly summarizes the development in the recent years of R-SOFCs with proton-conducting electrolytes, focusing on discussing the importance of adopting chemically stable materials in both fuel cell and electrolysis modes. The development of electrode materials for proton-conducting R-SOFCs is also discussed. © 2015 Elsevier B.V.
Original languageEnglish (US)
Pages (from-to)101-105
Number of pages5
JournalSolid State Ionics
Volume275
DOIs
StatePublished - Jul 2015

ASJC Scopus subject areas

  • Materials Science(all)
  • Chemistry(all)
  • Condensed Matter Physics

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