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Journal of Inorganic Materials

Journal of Inorganic Materials >

2008 , Vol. 23 >Issue 6: 1221 - 1224

DOI: https://doi.org/10.3724/SP.J.1077.2008.01221

Research Paper

Preparation and Oxygen Permeation for SrCo0.8Fe0.2O3-δ Tubular Asymmetric Membrane

  • FAN Chuan-Gang ,
  • HUANG Xiang-Xian ,
  • LIU Wei ,
  • CHEN Chu-Sheng
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  • 1. School of Materials Science and Engineering, Anhui University of Technology, Ma’anshan 243002, China; 2. Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China

Received date: 2007-12-25

  Revised date: 2008-03-11

  Online published: 2008-11-20

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Abstract

The tubular asymmetric membrane (TAM) was prepared by co-firing method with dense top layer of SrCo0.8Fe0.2O3-δ(SCF) and porous substrate layer of (SrCo0.8Fe0.2O3-δ)0.85(SrSnO3)0.15 (SCF-SS). Its phase composition, morphology and oxygen permeability were investigated. The results show that SCF layer and SCF-SS layer have desirable compatibility for configuration of asymmetric membrane. The resulting TAM sample sintered at 1150℃ has the dense layer of SCF with thickness of 50μm and the SCF-SS substrate with apparent porosity of 19.3%. The permeation rates of the resulting TAM are 1.91mL·cm-2·min-1 at 900℃ and 1.01mL·cm-2·min-1 at 800℃, respectively, which are 24% and 36% higher than those of the SCF tubular symmetric membrane (TSM) with same size(wall thickness of 1.4mm, outer diameter of 10.3mm, and length of 4.1cm).

Key words： tubular asymmetric membrane; oxygen permeation; mixed ion and electron conducting; perovskite

Cite this article

FAN Chuan-Gang , HUANG Xiang-Xian , LIU Wei , CHEN Chu-Sheng . Preparation and Oxygen Permeation for SrCo0.8Fe0.2O3-δ Tubular Asymmetric Membrane[J]. Journal of Inorganic Materials, 2008 , 23(6) : 1221 -1224 . DOI: 10.3724/SP.J.1077.2008.01221

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