Stability of sulfate doped SrCoO3-delta MIEC membrane
文献类型：期刊论文
| 作者 | Liu, Yan1,2; Zhu, Xuefeng1; Yang, Weishen1 |
| 刊名 | JOURNAL OF MEMBRANE SCIENCE
 |
| 出版日期 | 2016-03-01 |
| 卷号 | 501页码:53-59 |
| 关键词 | Miec Membrane Srcoo3-delta Sulfate Doped Phase Transition Perovskite |
| ISSN号 | 0376-7388 |
| DOI | 10.1016/j.memsci.2015.12.002 |
| 文献子类 | Article |
| 英文摘要 | A sulfate doped SrCoO3-delta (SC) mixed ionic-electronic conducting (MIEC) oxide, SrCo0.97S0.03O3-delta (SCS), was prepared to study the dependence of its stability on the incorporation of sulfate group into perovskite lattice. The high-temperature cubic perovskite phase can be stabilized down to room temperature by replacing 3% of cobalt-sites with sulfur. However, permeation experiments show that oxygen permeation fluxes through SC and SCS membranes experienced similar degradation processes at 850 degrees C. Hysteresis loops of oxygen permeation fluxes appear on the both membranes indicate a phase transition from cubic to hexagonal during cooling/heating circle of oxygen permeation tests. The results of permeation experiments, annealing treatments in an air or helium atmosphere and the EDS analysis show that more SrSO4 particles are enriched on the sweep side surface. A mechanism analysis on the sulfate group migration from the membrane bulk to surfaces was proposed to help understanding the experimental results. It is concluded that the sulfate group can migrate outside of perovskite lattice and reach to the gas-solid interfaces, so the stabilization function of sulfate to the cubic perovskite phase loses easily as the sulfate doped perovskite membrane encountering annealing treatments or oxygen partial pressure gradients. (C) 2015 Elsevier B.V. All rights reserved. |
| WOS关键词 | DUAL-PHASE MEMBRANES ; OXYGEN-PERMEABLE MEMBRANE ; PEROVSKITE-TYPE OXIDES ; HOLLOW-FIBER MEMBRANE ; CERAMIC MEMBRANES ; PERMEATION BEHAVIOR ; LOW-TEMPERATURE ; FUEL-CELLS ; STABILIZATION ; SEPARATION |
| WOS研究方向 | Engineering ; Polymer Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000368629100006 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/171420]  |
| 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 |
| 通讯作者 | Zhu, Xuefeng; Yang, Weishen |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, 457 Zhongshan Rd, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Yan,Zhu, Xuefeng,Yang, Weishen. Stability of sulfate doped SrCoO3-delta MIEC membrane[J]. JOURNAL OF MEMBRANE SCIENCE,2016,501:53-59. |
| APA | Liu, Yan,Zhu, Xuefeng,&Yang, Weishen.(2016).Stability of sulfate doped SrCoO3-delta MIEC membrane.JOURNAL OF MEMBRANE SCIENCE,501,53-59. |
| MLA | Liu, Yan,et al."Stability of sulfate doped SrCoO3-delta MIEC membrane".JOURNAL OF MEMBRANE SCIENCE 501(2016):53-59. |
入库方式： OAI收割
来源：大连化学物理研究所
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