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Journal of Inorganic Materials

Journal of Inorganic Materials >

2006 , Vol. 21 >Issue 5: 1141 - 1146

DOI: https://doi.org/10.3724/SP.J.1077.2006.01141

Research Paper

Thermal Stability and Oxygen Separation Properties of
SrCo0.8Fe0.2O3-δand SrCo0.8Fe0.1Sn0.1O3-δCeramic Membranes

  • FAN Chuan-Gang ,
  • LIU Wei ,
  • ZUO Yan-Bo ,
  • DENG Zeng-Qiang ,
  • HUANG Xiang-Xian ,
  • CHEN Chu-Sheng
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  • 1. Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230006, China; 2. School of Materials Engineering, Anhui University of Technology, Maanshan 243002, China

Received date: 2005-09-20

  Revised date: 2005-11-16

  Online published: 2006-09-20

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Abstract

The phase composition, thermal shocking resistance and the separating properties
of both SrCo0.8Fe0.2O3-δ(SCF) and SrCo0.8Fe0.1Sn0.1O3-δ (SSCF) membranes were investigated systematically. It was found the as
prepared SCF had long-term phase stability, and the SSCF had the composite feature with dual phase composition. As compared with the SCF, the SSCF had a more promoted thermal shocking resistance, which related to the decreasing of thermal expansion coefficient of it in comparison with the former. Furthermore, a permeation rate of 1.87×10-6 mol cm-2 s-1 was obtained on the as-prepared SCF membrane at 1000℃ and under oxygen partial pressure gradient of the PO2(h)/PO2(l)=0.209atm /0.012atm,
and at the same measuring condition, the permeability was 2.49×10-6 mol cm-2 s-1 for the as prepared SSCF one.

Key words： oxygen permeation; perovskite structure; ceramic membrane; thermal shocking resistance

Cite this article

FAN Chuan-Gang , LIU Wei , ZUO Yan-Bo , DENG Zeng-Qiang , HUANG Xiang-Xian , CHEN Chu-Sheng . Thermal Stability and Oxygen Separation Properties of
SrCo0.8Fe0.2O3-δand SrCo0.8Fe0.1Sn0.1O3-δCeramic Membranes[J]. Journal of Inorganic Materials, 2006 , 21(5) : 1141 -1146 . DOI: 10.3724/SP.J.1077.2006.01141

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