Crystal structure, oxygen permeability and stability of Ba0.5Sr0.5Co0.8Fe0.1M0.1O3-delta (M = Fe, Cr, Mn, Zr) oxygen-permeable membranes
文献类型：期刊论文
| 作者 | Lu, H; Tong, JH; Deng, ZQ; Cong, Y; Yang, WS |
| 刊名 | materials research bulletin
 |
| 出版日期 | 2006-04-13 |
| 卷号 | 41期号:4页码:683-689 |
| 关键词 | ceramics membrane oxygen permeability stability X-ray diffraction crystal structure |
| 英文摘要 | oxygen-permeable ceramic membrane materials of the ba0.5sr0.5co0.8fe0.2o3-delta (bscfo) and partially fe-substituted ba0.5sr0.5co0.8fe0.1m0.1o3-delta (m = cr, mn, zr) were synthesized by solid-state reaction method. these materials possess purely cubic perovskite structure with the exception of ba0.5sr0.5c0.8fe0.1m0.1o3-delta (m = mn, zr), in which minor impufities exist. oxygen permeability across these dense membrane disks were measured under an air[he oxygen partial pressure gradient in the temperature range of 973-1123 k. the results demonstrated that the oxygen permeation fluxes of the ba0.5sr0.5co0.8fe0.1m0.1o3-delta (m = fe, cr, mn, zr) membranes increased in the following order: fe (bscfo) > cr > zr > mn. the corresponding activation energies for oxygen permeation of ba0.5sr0.5co0.8fe0.1m0.1o3-delta (m = fe, cr, zr) membranes were calculated to be similar (53 +/- 4 kj/mol), which was remarkably lower than that (99 +/- 3 kj/mol) of ba0.5sr0.5co0.8fe0.1m0.1o3-delta (m = mn) membrane. in addition, good oxygen permeation stability of the ba0.5sr0.5co0.8fe0.1m0.1o3-delta (m = cr) membrane was achieved at the temperature lower than 1123 k. the x-ray diffraction (xrd) and differential thermal analysis (dta) experiments showed that the structural stability of bscfo could be significantly improved when fe ions in the bscfo material were partially substituted by cr, mn or zr ions. (c) 2005 elsevier ltd. all rights reserved. |
| WOS标题词 | science & technology ; technology |
| 类目[WOS] | materials science, multidisciplinary |
| 研究领域[WOS] | materials science |
| 关键词[WOS] | perovskite-type oxides ; partial oxidation ; ba0.5sr0.5co0.8fe0.2o3-delta membrane ; ceramic membranes ; synthesis gas ; methane ; dense ; conductivity ; reactors ; nonstoichiometry |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000236660000001 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/140004]  |
| 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, H,Tong, JH,Deng, ZQ,et al. Crystal structure, oxygen permeability and stability of Ba0.5Sr0.5Co0.8Fe0.1M0.1O3-delta (M = Fe, Cr, Mn, Zr) oxygen-permeable membranes[J]. materials research bulletin,2006,41(4):683-689. |
| APA | Lu, H,Tong, JH,Deng, ZQ,Cong, Y,&Yang, WS.(2006).Crystal structure, oxygen permeability and stability of Ba0.5Sr0.5Co0.8Fe0.1M0.1O3-delta (M = Fe, Cr, Mn, Zr) oxygen-permeable membranes.materials research bulletin,41(4),683-689. |
| MLA | Lu, H,et al."Crystal structure, oxygen permeability and stability of Ba0.5Sr0.5Co0.8Fe0.1M0.1O3-delta (M = Fe, Cr, Mn, Zr) oxygen-permeable membranes".materials research bulletin 41.4(2006):683-689. |
入库方式： OAI收割
来源：大连化学物理研究所
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