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Phase transitions in Sr1+xCo0.8Fe0.2O3-delta oxides
He, Yufeng1,2; Zhu, Xuefeng1; Guo, Zhenfang1; Yang, Weishen1
关键词Oxygen Desorption Crystal Structure X-ray Techniques Membranes
刊名MATERIALS LETTERS
2010-07-31
DOI10.1016/j.matlet.2010.04.058
64期:14页:1618-1621
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Technology ; Physical Sciences
类目[WOS]Materials Science, Multidisciplinary ; Physics, Applied
研究领域[WOS]Materials Science ; Physics
关键词[WOS]OXYGEN ; PEROVSKITES ; SEPARATION ; BEHAVIOR
英文摘要The phase transitions that take place in Sr1+xCo0.8Fe0.2O3-delta (-0.2 <= x <= 0.1) oxides are reported here. Thermogravimetric analysis (TGA) showed that the oxides with -0.2 <= x <= 0 were prone to undergo oxygen-vacancy disorder-order phase transitions, while others with x=0.05, 0.1 had more stable crystal structures during oxygen-desorption processes in nitrogen. These results were further confirmed by high-temperature in-situ X-ray techniques. The changes in activation energies of three typical oxides, Sr1+xCo0.8Fe0.2O3-delta (x= -02, 0, 0.1), used as oxygen-permeable membranes were investigated. The phase transitions in Sr1+xCo0.8Fe0.2O3-delta (x = -0.2,0) have also been detected in differential scanning calorimetry (DSC) profiles. (C) 2010 Elsevier B.V. All rights reserved.
语种英语
WOS记录号WOS:000279529300021
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/141630
专题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.Chinese Acad Sci, Grad Sch, Dalian 116023, Peoples R China
推荐引用方式
GB/T 7714
He, Yufeng,Zhu, Xuefeng,Guo, Zhenfang,et al. Phase transitions in Sr1+xCo0.8Fe0.2O3-delta oxides[J]. MATERIALS LETTERS,2010,64(14):1618-1621.
APA He, Yufeng,Zhu, Xuefeng,Guo, Zhenfang,&Yang, Weishen.(2010).Phase transitions in Sr1+xCo0.8Fe0.2O3-delta oxides.MATERIALS LETTERS,64(14),1618-1621.
MLA He, Yufeng,et al."Phase transitions in Sr1+xCo0.8Fe0.2O3-delta oxides".MATERIALS LETTERS 64.14(2010):1618-1621.
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