A novel single phase cathode material for a proton-conducting SOFC

Zetian Tao, Lei Bi, Litao Yan, Wenping Sun, Zhiwen Zhu, Ranran Peng, Wei Liu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

75 Scopus citations

Abstract

A novel single phase BaCe0.5Bi0.5O3 - δ (BCB) was employed as a cathode material for a proton-conducting solid oxide fuel cell (SOFC). The single cell, consisting of a BaZr0.1Ce0.7Y0.2O3 - δ (BZCY7)-NiO anode substrate, a BZCY7 anode functional layer, a BZCY7 electrolyte membrane and a BCB cathode layer, was assembled and tested from 600 to 700 °C with humidified hydrogen (∼3% H2O) as the fuel and the static air as the oxidant. An open-circuit potential of 0.96 V and a maximum power density of 321 mW cm-2 were obtained for the single cell. A relatively low interfacial polarization resistance of 0.28Ω cm2 at 700 °C indicated that the BCB was a promising cathode material for proton-conducting SOFCs.

Original languageEnglish (US)
Pages (from-to)688-690
Number of pages3
JournalElectrochemistry Communications
Volume11
Issue number3
DOIs
StatePublished - Mar 1 2009

Keywords

  • Co-pressing way
  • Doped barium cerate
  • Perovskite structure
  • Proton-conducting SOFCs
  • Single phase cathode

ASJC Scopus subject areas

  • Electrochemistry

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