Preparation of an extremely dense BaCe0.8Sm0.2O3-δ thin membrane based on an in situ reaction

Lei Bi, Shangquan Zhang, Shumin Fang, Lei Zhang, Kui Xie, Changrong Xia, Wei Liu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

51 Scopus citations

Abstract

The thin membrane of BaCe0.8Sm0.2O3-δ (BCS) with high quality was successfully fabricated on porous NiO-BCS anode substrate through a novel in situ reaction method. The key part of this method is to directly spray well-mixed suspension of BaCO3, CeO2 and Sm2O3 instead of pre-synthesized BCS ceramic powder on the anode substrate. After sintering at 1400 °C for 5 h, the extremely dense electrolyte membrane in the thickness of 10 μm is obtained. A single cell was assembled with La0.7Sr0.3FeO3-σ as cathode and tested with humidified hydrogen as fuel at 650 °C. The open circuit voltage (OCV) and maximum power density respectively reach 1.04 V and 535 mW/cm2. Interface resistance of cell under open circuit condition was also investigated.

Original languageEnglish (US)
Pages (from-to)1005-1007
Number of pages3
JournalElectrochemistry Communications
Volume10
Issue number7
DOIs
StatePublished - Jul 1 2008

Keywords

  • Barium cerate
  • In situ reaction
  • Proton conductor
  • Suspension spray

ASJC Scopus subject areas

  • Electrochemistry

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