A cobalt-free Sm 0.5Sr 0.5FeO 3-δ- BaZr 0.1Ce 0.7Y 0.2O 3-δ composite cathode for proton-conducting solid oxide fuel cells

Xiaoyong Lu, Yonghong Chen, Yanzhi Ding*, Lin Bin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

A cobalt-free Sm 0.5Sr 0.5FeO 3-δ- BaZr 0.1Ce 0.7Y 0.2O 3-δ (SSF-BZCY) was developed as a composite cathode material for proton-conducting solid oxide fuel cells (H-SOFC) based on proton-conducting electrolyte of stable BZCY. The button cells of Ni-BZCY/BZCY/SSF-BZCY were fabricated and tested from 550 to 700°C with humidified H 2 (3% H 2O) as a fuel and ambient oxygen as oxidant. An open-circuit potential of 1.024 V, maximum power density of 341 mW cm -2, and a low electrode polarization resistance of 0.1 Ω cm 2 were achieved at 700°C. The experimental results indicated that the SSF-BZCY composite cathode is a good candidate for cathode material.

Original languageEnglish (US)
Pages (from-to)8630-8634
Number of pages5
JournalInternational Journal of Hydrogen Energy
Volume37
Issue number10
DOIs
StatePublished - May 1 2012

Keywords

  • Cobalt-free
  • Composite cathode
  • Electrode polarization resistance
  • Proton-conducting solid oxide fuel cells

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

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