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题名: The Structure and Labile Oxygen of Impurity-doped Perovskite-type Oxide
作者: Qu Zhaojun1;  Yu Chunying1;  Li Wenzhao1;  Chen Yixuan1
关键词: Perovskite ;  Substituting ;  XRD line widening ;  Crystalline imperfection ;  Labile oxygen
刊名: ACTA PHYSICO-CHIMICA SINICA
发表日期: 1994
DOI: 10.3866/PKU.WHXB19940906
卷: 10, 期:9, 页:796-801
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: Perovskite type oxide has a stable cubic structure. XRD pattern showed that the fundamental structure of SrTiO3 is unchanged by adding various valent elements(V5+, Al3+, Mg2+, Li1+) partially substituting for Ti4+ in SrTiO3. But the widening of XRD line proved that more crystalline imperfections are formed by doping. The lower of the valence and the larger amount of the dopant added, the stronger is the effect resulted. The crystalline imperfection induces the formation of oxygen vacancy Vo whereby the lattice oxygen becomes exchangeable with the oxygen gas at moderate temperature, TPD showed that the amount of labile oxygen at 300 similar to 600 degrees C was closely related to the degree of crystalline imperfection in doped SrTiO3.
语种: 英语
WOS记录号: WOS:000207589600006
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142801
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, Dalian 116023, Peoples R China

Recommended Citation:
Qu Zhaojun,Yu Chunying,Li Wenzhao,et al. The Structure and Labile Oxygen of Impurity-doped Perovskite-type Oxide[J]. ACTA PHYSICO-CHIMICA SINICA,1994,10(9):796-801.
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