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题名: Effects of sintering temperature on properties of dual-phase oxygen permeable membranes
作者: Li, Qiming1, 2;  Zhu, Xuefeng1;  He, Yufeng1;  Cong, You1;  Yang, Weishen1
关键词: Dual-phase membrane ;  Sintering temperature ;  Oxygen permeation ;  Element transport ;  Grain size
刊名: JOURNAL OF MEMBRANE SCIENCE
发表日期: 2011-02-01
DOI: 10.1016/j.memsci.2010.10.045
卷: 367, 期:1-2, 页:134-140
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology ;  Physical Sciences
类目[WOS]: Engineering, Chemical ;  Polymer Science
研究领域[WOS]: Engineering ;  Polymer Science
英文摘要: The effects of sintering temperature on the properties of Ce(0.85)Sm(0.15)O(3-delta)-Sm(0.6)Sr(0.4)FeO(3-delta) (SDC-SSF) dual-phase membranes were investigated. X-ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive X-ray analysis (EDX), alternating current impedance and oxygen permeation techniques were employed to study the phase structure, element transport, microstructure, grain size and oxygen permeation through dual-phase membranes sintered at different temperatures. Sintering temperature has complex effects on dual-phase membranes compared with single-phase perovskite membranes. XRD and EDX analysis results reveal that the surfaces of dual-phase membranes were mainly coated by fluorite oxide with a thickness of about 45 mu m when the membrane was sintered at 1500 degrees C. Fluorite grains were gradually transferred from the inner layer to the outer layer with the increase of sintering temperature, which leads to a decrease in electronic conductivity of the membrane surface. The grain size increased with the rising of sintering temperature, which has negatively effect on oxygen permeation when the sintering temperature is higher than 1425 degrees C. (C) 2010 Elsevier B.V. All rights reserved.
关键词[WOS]: PEROVSKITE-TYPE OXIDES ;  PARTIAL OXIDATION ;  COMPOSITE MEMBRANES ;  AIR SEPARATION ;  PERMEATION ;  METHANE ;  REACTORS ;  PERFORMANCE ;  STABILITY ;  SYNGAS
语种: 英语
WOS记录号: WOS:000286852000017
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142513
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Liaoning Univ Petr Chem Technol, Sch Petrochem Engn, Fushun Liaoning 113001, Peoples R China

Recommended Citation:
Li, Qiming,Zhu, Xuefeng,He, Yufeng,et al. Effects of sintering temperature on properties of dual-phase oxygen permeable membranes[J]. JOURNAL OF MEMBRANE SCIENCE,2011,367(1-2):134-140.
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