Ordered structures of defect clusters in gadolinium-doped ceria

	Ordered structures of defect clusters in gadolinium-doped ceria
	Li, Zhi-Peng 1; Mori, Toshiyuki 1; Ye, Fei 2; Ou, Dingrong 3; Zou, Jin 4,5; Drennan, John 5
刊名	journal of chemical physics
	2011-06-14
卷号	134 期号:22
英文摘要	the nano-domain, with short-range ordered structure, has been widely observed in rare-earth-doped ceria. atomistic simulation has been employed to investigate the ordering structure of the nano-domain, as a result of aggregation and segregation of dopant cations and the associated oxygen vacancies in gadolinium-doped ceria. it is found that the binding energy of defect cluster increases as a function of cluster size, which provides the intrinsic driving force for the defect cluster growth. however, the ordered structures of the defect clusters are different from the chain model as previously reported. adjacent oxygen vacancies prefer to locate along < 110 >/2 lattice vector, which results in a unique stable structure (isosceles triangle) formation. such isosceles triangle structure can act as the smallest unit of cluster growth to form a symmetric dumbbell structure. this unique dumbbell structure is hence considered as a building block for the development of larger defect clusters, leading to nano-domain formation in rare-earth-doped ceria. (c) 2011 american institute of physics. [doi: 10.1063/1.3599089]
WOS标题词	science & technology ; physical sciences
类目[WOS]	physics, atomic, molecular & chemical
研究领域[WOS]	physics
关键词[WOS]	oxygen-ion conductivity ; oxide fuel-cells ; electrolytic properties ; solid electrolytes ; ceo2 ; microstructures ; morphology ; systems ; anode
收录类别	SCI
语种	英语
WOS记录号	WOS:000291660200034
公开日期	2015-11-17
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/142357]
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
作者单位	1.Natl Inst Mat Sci, Global Res Ctr Environm & Energy Based Nanomat Sc, Tsukuba, Ibaraki 3050044, Japan 2.Dalian Univ Technol, Sch Mat Sci & Engn, Key Lab Mat Modificat, Dalian 116024, Liaoning, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, Lab Fuel Cells, Dalian 116023, Liaoning, Peoples R China 4.Univ Queensland, Sch Engn, Brisbane, Qld 4072, Australia 5.Univ Queensland, Ctr Microscopy & Microanal, Brisbane, Qld 4072, Australia
推荐引用方式 GB/T 7714	Li, Zhi-Peng,Mori, Toshiyuki,Ye, Fei,et al. Ordered structures of defect clusters in gadolinium-doped ceria[J]. journal of chemical physics,2011,134(22).
APA	Li, Zhi-Peng,Mori, Toshiyuki,Ye, Fei,Ou, Dingrong,Zou, Jin,&Drennan, John.(2011).Ordered structures of defect clusters in gadolinium-doped ceria.journal of chemical physics,134(22).
MLA	Li, Zhi-Peng,et al."Ordered structures of defect clusters in gadolinium-doped ceria".journal of chemical physics 134.22(2011).