Oxygen permeability and stability of BaCe0.1Co0.4Fe0.5O3-delta oxygen permeable membrane

	Oxygen permeability and stability of BaCe0.1Co0.4Fe0.5O3-delta oxygen permeable membrane
	Li, Qiming 1,2,3; Zhu, Xuefeng 1; He, Yufeng 1; Yang, Weishen 1
刊名	separation and purification technology
	2010-05-28
卷号	73 期号:1 页码:38-43
关键词	BaCe0.1Co0.4Fe0.5O3-delta Perovskite oxides Oxygen separation Stability
英文摘要	bace0.1co0.4fe0.5o3-delta, a new mixed ionic-electronic conducting (miec) perovskite oxide, was successfully synthesized, which has high oxygen permeability and excellent structural stability. through the xrd characterization, it was shown that only if the amount of cobalt is no more than 40%, pure perovskite phase can be obtained. oxygen permeation flux of bace0.1co0.4fe0.5o3-delta permeable membrane reaches at 1.35 ml min(-1) cm(-2) at 950 degrees c with membrane thickness of 1 mm. in oxygen permeation operation of 270 h at 800 degrees c and 750 degrees c, no degradation of oxygen permeation flux was found. an increasing process was observed in the initial oxygen permeation of bace0.1co0.4fe0.5o3-delta which took about 40 h to reach steady state. if the thickness of the membrane is thicker than 0.7 mm, bulk diffusion is the rate-determining step of oxygen permeation. and if its thickness is thinner than 0.7 mm, oxygen permeation process is mainly controlled by surface exchange mechanism. (c) 2009 elsevier b.v. all rights reserved.
WOS标题词	science & technology ; technology
类目[WOS]	engineering, chemical
研究领域[WOS]	engineering
关键词[WOS]	perovskite-type oxides ; mixed-conducting oxides ; partial oxidation ; surface exchange ; transport-properties ; ceramic membranes ; permeation ; methane ; syngas ; reactors
收录类别	SCI ; ISTP
语种	英语
WOS记录号	WOS:000278721700008
公开日期	2015-11-17
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/142104]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing, Peoples R China 3.Liaoning Univ Petr Chem Technol, Sch Petrochem Engn, Fushun Liaoning 113001, Peoples R China
推荐引用方式 GB/T 7714	Li, Qiming,Zhu, Xuefeng,He, Yufeng,et al. Oxygen permeability and stability of BaCe0.1Co0.4Fe0.5O3-delta oxygen permeable membrane[J]. separation and purification technology,2010,73(1):38-43.
APA	Li, Qiming,Zhu, Xuefeng,He, Yufeng,&Yang, Weishen.(2010).Oxygen permeability and stability of BaCe0.1Co0.4Fe0.5O3-delta oxygen permeable membrane.separation and purification technology,73(1),38-43.
MLA	Li, Qiming,et al."Oxygen permeability and stability of BaCe0.1Co0.4Fe0.5O3-delta oxygen permeable membrane".separation and purification technology 73.1(2010):38-43.