Oxygen permeability and improved stability of a permeable Zr-substituted perovskite membrane for air separation
文献类型：期刊论文
| 作者 | Lu, Hui; Cong, You; Yang, Weishen |
| 刊名 | materials science and engineering b-solid state materials for advanced technology
 |
| 出版日期 | 2007-06-25 |
| 卷号 | 141期号:1-2页码:55-60 |
| 关键词 | perovskite oxygen-permeable membrane oxygen permeability stability |
| 产权排序 | 1;1 |
| 通讯作者 | 杨维慎 |
| 英文摘要 | zr-substituted ba0.5sr0.5co0.8fe0.1zr0.1o3-delta (bscfzo) powders for oxygen membrane were synthesized by the solid-state reaction (ssr) method. oxygen permeation fluxes (jo(2)) across the dense ba0.5sr0.5co0.8fe0.2o3-delta (bscfo) and bscfzo membrane disks were measured at 973-1123 k, and they increased as bscfo (synthesized by improved edta-citric acid complexing method, ecc) > bscfo (ssr) > bscfzo. the reduced oxygen permeability of zr-substituting bscfzo material can be attributed primarily to the higher oxidation state of zr cations than ones of iron cations, thus lead to the decrease in the oxygen vacancy concentration in bscfo. oxygen permeation measurements with different oxygen partial pressure gradients and membrane thicknesses demonstrate the bulk oxide ionic diffusion is the rate-limiting step for the bscfzo membrane in the range of temperatures investigated (973-1123 k). the enhanced stability of bscfzo demonstrated by the differential thermal analysis (dta) and high-temperature x-ray diffraction (ht-xrd) characterizations, show that the structural stability can be improved when the fe ions in the b-sites of bscfo materials are substituted partially by zr cations. (c) 2007 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; technology ; physical sciences |
| 类目[WOS] | materials science, multidisciplinary ; physics, condensed matter |
| 研究领域[WOS] | materials science ; physics |
| 关键词[WOS] | partial oxidation ; ba0.5sr0.5co0.8fe0.2o3-delta membrane ; conducting membranes ; ceramic membrane ; high-pressures ; pom reaction ; permeation ; methane ; reactor ; performance |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000249566100009 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/99411]  |
| 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 | Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, Hui,Cong, You,Yang, Weishen. Oxygen permeability and improved stability of a permeable Zr-substituted perovskite membrane for air separation[J]. materials science and engineering b-solid state materials for advanced technology,2007,141(1-2):55-60. |
| APA | Lu, Hui,Cong, You,&Yang, Weishen.(2007).Oxygen permeability and improved stability of a permeable Zr-substituted perovskite membrane for air separation.materials science and engineering b-solid state materials for advanced technology,141(1-2),55-60. |
| MLA | Lu, Hui,et al."Oxygen permeability and improved stability of a permeable Zr-substituted perovskite membrane for air separation".materials science and engineering b-solid state materials for advanced technology 141.1-2(2007):55-60. |
入库方式： OAI收割
来源：大连化学物理研究所
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