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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