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题名: Defect clustering and local ordering in rare earth co-doped ceria
作者: Ou, Ding Rong1, 2;  Ye, Fei3;  Mori, Toshiyuki2
刊名: PHYSICAL CHEMISTRY CHEMICAL PHYSICS
发表日期: 2011
DOI: 10.1039/c0cp02174a
卷: 13, 期:20, 页:9554-9560
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical ;  Physics, Atomic, Molecular & Chemical
研究领域[WOS]: Chemistry ;  Physics
英文摘要: Defect clustering and local ordering in rare earth co-doped ceria were studied by computer simulation and electron diffraction, respectively. The simulation of electrically neutral defect clusters containing up to four oxygen vacancies revealed that the permutation of different dopant cations in a co-doped cluster could have a significant influence on the binding energy of the cluster. Moreover, the growth of larger clusters (number of oxygen vacancies >= 3) could be restrained by a co-doping effect. The selected area electron diffraction study indicated that the restrained growth of larger clusters will further lead to a suppression of the local ordering of oxygen vacancies in co-doped ceria. The correlation between defect clustering, local ordering of oxygen vacancies and ionic conduction in co-doped ceria was discussed.
关键词[WOS]: SOLID OXIDE FUEL ;  OXYGEN-ION CONDUCTIVITY ;  ELECTRICAL-PROPERTIES ;  ANION TRANSPORT ;  ELECTROLYTES ;  SIMULATION ;  MICROSTRUCTURES ;  EXPLANATION ;  DOPANTS ;  RADIUS
语种: 英语
WOS记录号: WOS:000290224900058
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142489
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, Lab Fuel Cells, Dalian 116023, Liaoning, Peoples R China
2.Natl Inst Mat Sci, Innovat Ctr Nanomat Sci Environm & Energy, Tsukuba, Ibaraki 3050044, Japan
3.Dalian Univ Technol, Sch Mat Sci & Engn, Key Lab Mat Modificat, Dalian 116024, Liaoning, Peoples R China

Recommended Citation:
Ou, Ding Rong,Ye, Fei,Mori, Toshiyuki. Defect clustering and local ordering in rare earth co-doped ceria[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2011,13(20):9554-9560.
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