Indium as an ideal functional dopant for a proton-conducting solid oxide fuel cell

Lei Bi, Shangquan Zhang, Lei Zhang, Zetian Tao, Haiqian Wang, Wei Liu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

73 Scopus citations


A high In-dopant level BaCeO3 material was used as an electrolyte for a proton-conducting solid oxide fuel cell (SOFC). Indium behaved as an ideal dopant for BaCeO3, which improved both the chemical stability and sinterability for BaCeO3 greatly. The anode supported BaCe0.7In0.3O3-δ (BCI30) membrane reached dense after sintering at 1100 °C, much lower than the sintering temperature for other BaCeO3-based materials. Additionally, the BCI30 membrane showed adequate chemical stability against CO2 compared with the traditional rare earth doped BaCeO3. The BCI30-based fuel cell also showed a reasonable cell performance and a good long-term stability under the operating condition. Besides, the LaSr3Co1.5Fe1.5O10-δ (LSCF) was also evaluated as a potential cathode candidate for a proton-conducting SOFC.

Original languageEnglish (US)
Pages (from-to)2421-2425
Number of pages5
JournalInternational Journal of Hydrogen Energy
Issue number5
StatePublished - Mar 2009
Externally publishedYes

Bibliographical note

Funding Information:
This work was supported by the Key Program of the Chinese Academy of Sciences under grant No. KJCX1.YW07 and the National Natural Science Foundation of China under grant No. 50772109.


  • Chemical stability
  • In-doped BaCeO
  • Proton conductor
  • SOFC
  • Sinterability

ASJC Scopus subject areas

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


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