BaCo0.7Fe0.22Y0.08O3-δas an Active Oxygen Reduction Electrocatalyst for Low-Temperature Solid Oxide Fuel Cells below 600 °c

Wei He, Xuelian Wu, Guangming Yang, Huangang Shi, Feifei Dong, Meng Ni

Research output: Journal article publicationReview articleAcademic researchpeer-review

29 Citations (Scopus)

Abstract

Solid oxide fuel cells (SOFCs) offer great promise as sustainable energy conversion devices due to their high chemical-to-electrical conversion efficiency, flexible fuel sources, and low pollutions. In recent years, much effort has been devoted to developing intermediate temperature SOFCs. Central to the devices is the availability of a highly effective electrocatalyst for oxygen reduction reaction with reduced temperature operation, especially below 600 °C. Here we present a novel B-site Y-doped perovskite-type oxide BaCo0.7Fe0.22Y0.08O3-δ(BCFY) with extremely low polarization resistances (e.g., 0.10 ω cm2at 550 °C), which is ascribed to high cubic symmetry structure and fast oxygen kinetics. The superior electrocatalytic activity and stability enable BCFY to be a promising cathode candidate toward the application of reduced temperature SOFCs.
Original languageEnglish
Pages (from-to)301-305
Number of pages5
JournalACS Energy Letters
Volume2
Issue number2
DOIs
Publication statusPublished - 10 Feb 2017

ASJC Scopus subject areas

  • Chemistry (miscellaneous)
  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Materials Chemistry

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