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题名: Investigation of ideal zirconium-doped perovskite-type ceramic membrane materials for oxygen separation
作者: Tong, JH;  Yang, WS;  Zhu, BC;  Cai, R
关键词: inorganic membranes ;  zirconium ;  perovskite ;  oxygen separation ;  mixed conductor
刊名: JOURNAL OF MEMBRANE SCIENCE
发表日期: 2002-06-30
卷: 203, 期:1-2, 页:175-189
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology ;  Physical Sciences
类目[WOS]: Engineering, Chemical ;  Polymer Science
研究领域[WOS]: Engineering ;  Polymer Science
英文摘要: Zirconium-doped perovskite-type membrane materials of BaCo0.4Fe0.6-xZrxO3-delta (x = 0-0.4) with mixed oxygen ion and electron conductivity were synthesized through a method of combining citric and EDTA acid complexes. The results of X-ray diffraction (XRD), oxygen temperature-programmed desorption (O-2-TPD) and hydrogen temperature-programmed reduction (H-2-TPR) showed that the incorporation of proper amount of zirconium into BaCo0.4Fe0.6O3-delta could stabilize the ideal and cubic structure of perovskite. Studies on the oxygen permeability of the as-synthesized membrane disks under air/He gradient indicated that the content of zirconium in these materials had great effects on oxygen permeation flux, activation energy for oxygen permeation and operation stability. The high oxygen permeation flux of 0.90 ml cm(-2) min(-1) at 950degreesC, the single activation energy for oxygen permeation in the range of 600-950 degreesC and the long-term operation stability at a relatively lower operational temperature of 800 degreesC under air/He gradient were achieved for the BaCo0.4Fe0.4Zr0.2O3-delta material. Meanwhile, the effect of carbon dioxide on structural stability and oxygen permeability of this material was also studied in detail, which revealed that the reversible stability could be attained for it. (C) 2002 Elsevier Science B.V. All rights reserved.
关键词[WOS]: YTTRIA-STABILIZED ZIRCONIA ;  PARTIAL OXIDATION ;  DENSE PEROVSKITE ;  PERMEATION ;  PERMEABILITY ;  REACTORS ;  METHANE ;  SEMIPERMEABILITY ;  CONDUCTIVITY ;  SYNGAS
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000176241800015
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/85697
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Tong, JH,Yang, WS,Zhu, BC,et al. Investigation of ideal zirconium-doped perovskite-type ceramic membrane materials for oxygen separation[J]. JOURNAL OF MEMBRANE SCIENCE,2002,203(1-2):175-189.
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