中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Germanium and iron co-substituted SrCoO2.5+delta as oxygen permeable membrane

文献类型:期刊论文

作者Deng, ZQ; Liu, W; Chen, CS; Lu, H; Yang, WS
刊名solid state ionics
出版日期2004-05-31
卷号170期号:3-4页码:187-190
关键词dense membrane phase transition oxygen permeability electrical conductivity
英文摘要germanium and iron co-doped srcoo2.5 + (delta) was investigated in terms of phase stability, oxygen permeability and electrical conductivity. the favorable high-temperature cubic structure of srcoo2.5 + delta was stabilized to lower temperatures by co-doping ge (10 mol%) and fe (10 mol%) that substituted for co, which however could not be achieved by doping ge (20 mol%) alone. in contrast to srco0.8ge0.2o2.5 (+ delta) sample which showed a sharp decrease in oxygen permeability at temperature of similar to875 degreesc upon cooling, srge0.1co0.8fe0.1o3-delta sample remained well-permeable to oxygen at lower temperatures down to at least 820 degreesc; an abrupt change in electrical conductivity in srco0.8ge0.2o2.5 (+ delta) also occurred accompanying the phase transition. the oxygen permeation flux for srge0.1co0.8fe0.1o3 - delta increased significantly with the decrease of the membrane thickness, indicating the transport of oxygen ions in the bulk of the membrane as the rate-limiting step. (c) 2004 elsevier b.v. all rights reserved.
WOS标题词science & technology ; physical sciences
类目[WOS]chemistry, physical ; physics, condensed matter
研究领域[WOS]chemistry ; physics
关键词[WOS]perovskite-type oxides ; electrical-conductivity ; permeation ; system
收录类别SCI
语种英语
WOS记录号WOS:000222622500005
公开日期2015-11-10
源URL[http://159.226.238.44/handle/321008/139394]  
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.Univ Sci & Technol China, Dept Mat Sci & Engn, Lab Adv Funct Mat & Devices, Hefei 230026, Anhui, Peoples R China
推荐引用方式
GB/T 7714
Deng, ZQ,Liu, W,Chen, CS,et al. Germanium and iron co-substituted SrCoO2.5+delta as oxygen permeable membrane[J]. solid state ionics,2004,170(3-4):187-190.
APA Deng, ZQ,Liu, W,Chen, CS,Lu, H,&Yang, WS.(2004).Germanium and iron co-substituted SrCoO2.5+delta as oxygen permeable membrane.solid state ionics,170(3-4),187-190.
MLA Deng, ZQ,et al."Germanium and iron co-substituted SrCoO2.5+delta as oxygen permeable membrane".solid state ionics 170.3-4(2004):187-190.

入库方式: OAI收割

来源:大连化学物理研究所

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