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题名: Synthesis and oxygen permeation study of novel perovskite-type BaBixCo0.2Fe0.8-xO3-delta ceramic membranes
作者: Shao, ZP;  Xiong, GX;  Cong, Y;  Yang, WS
关键词: inorganic membrane ;  bismuth ;  perovskite ;  oxygen and nitrogen separation ;  mixed conducting
刊名: JOURNAL OF MEMBRANE SCIENCE
发表日期: 2000-01-04
卷: 164, 期:1-2, 页:167-176
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: Novel perovskite-type B-site Bi-doped BaBixCo0.2Fe0.8-xO3-delta (0.1 less than or equal to x less than or equal to 0.5) oxide membranes were exploited and synthesized. Oxygen permeation through these membranes was studied by the GC method using a high-temperature permeation cell. High permeation fluxes were observed. The permeation Aux of BaBi0.2Co0.2Fe0.6O3-delta membrane reached about 1 mi min(-1) cm(-2) under air/He gradients at 950 degrees C. The dependence of the permeation flux on thickness for BaBi0.3Co0.2Fe0.5O3-delta membrane was investigated in a wide temperature range from 600 degrees C to 950 degrees C. The permeation rate was controlled by surface exchange kinetics at lower temperatures. Bulk diffusion became partially rate-determining with rise in temperature. Oxygen temperature-programmed desorption (O-2-TPD) results showed very good oxygen adsorption and desorption reversibility of the materials. (C) 2000 Elsevier Science B.V. All rights reserved.
关键词[WOS]: CONDUCTING MEMBRANES ;  PARTIAL OXIDATION ;  METHANE ;  PERMEABILITY ;  ION ;  REACTOR ;  SYNGAS
语种: 英语
WOS记录号: WOS:000084761700015
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/138816
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:
Shao, ZP,Xiong, GX,Cong, Y,et al. Synthesis and oxygen permeation study of novel perovskite-type BaBixCo0.2Fe0.8-xO3-delta ceramic membranes[J]. JOURNAL OF MEMBRANE SCIENCE,2000,164(1-2):167-176.
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