Research Paper

Preparation and Properties of SrFeO3-δ Based Mixed Conducting Membrane Material Doped with Cu and Ti

  • ZHANG Heng ,
  • DONG Xin-Fa ,
  • LIN Wei-Ming
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  • 1. School of Chemical and Energy Engineering, South China University of Technology, Guangzhou 510640, China; 2. Guangzhou University, Guangzhou 510091, China

Received date: 2006-02-20

  Revised date: 2006-04-11

  Online published: 2007-01-20

Abstract

A series of SrFe(Cu,Ti)O3-δ membrane materials were synthesized by a citric acid complex method. The crystal structures and phase stabilities of the materials were studied by TG-DSC and XRD. It is found that Cu and Ti doping content has great effects on the phase component and the oxygen permeability of the materials. The addition of Cu can increase the oxygen vacancy concentration and the addition of Ti can enhance the structure stability.
SrFe0.6Cu0.3Ti0.1O3-δ has pure perovskite structure and exhibits high stability and high oxygen permeation flux which is 0.7mL﹒min-1﹒cm-2 (STP) under air/He gradient at 900℃.

Cite this article

ZHANG Heng , DONG Xin-Fa , LIN Wei-Ming . Preparation and Properties of SrFeO3-δ Based Mixed Conducting Membrane Material Doped with Cu and Ti[J]. Journal of Inorganic Materials, 2007 , 22(1) : 97 -100 . DOI: 10.3724/SP.J.1077.2007.00097

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