Hollow fibre perovskite membranes for oxygen separation

被引:188
作者
Schiestel, T
Kilgus, M
Peter, S
Caspary, KJ
Wang, H
Caro, J
机构
[1] Fraunhofer Inst Interfacial Engn & Biotechnol, IGB, D-70569 Stuttgart, Germany
[2] Uhde GmbH, D-44141 Dortmund, Germany
[3] Leibniz Univ Hannover, Inst Phys Chem & Elektrochem, D-30167 Hannover, Germany
关键词
perovskite hollow fibre; BCFZ; oxygen; gas separation; oxygen ion conductor;
D O I
10.1016/j.memsci.2005.03.035
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Perovskite hollow fibre membranes of the chemical composition BaZrxCoyFezO3-delta (BCFZ) have been developed using a phase inversion spinning process followed by sintering. The BCFZ hollow fibre membranes show an O-2 flux of 7.6 ml/n-tin/cm(2) at 900 degrees C which is the highest value so far known. From the Wagner theory it follows that the O-2 transport through thin walled perovskite hollow fibre membranes is controlled by both vacancy diffusion and interface reactions. (c) 2005 Elsevier B.V. All rights reserved.
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页码:1 / 4
页数:4
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