Structural changes induced by doping in LiNiO2

	Structural changes induced by doping in LiNiO2
	Liu, XY; Zhao, YJ; Li, Y; Xia, DG; Chu, WS; Li, SJ; Wu, ZY; Chu WS(储旺盛); Li SJ(李树军); Wu ZY(吴自玉)
刊名	CHINESE JOURNAL OF INORGANIC CHEMISTRY
	2006
卷号	22 期号:6 页码:1007-1012
关键词	LiNiO2 EXAFS doping local structure
通讯作者	Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100022, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
英文摘要	Structural modifications in LiNiO2 induced by doping of Al, Co and Mn were investigated by XRD and EXAFS. Diffraction experiments show that doping does not modify the phase as LiNiO2, and all structures belong to the R (3) over barm group, however, doping of Al, Co and Mn, decreases the size of the unit cell, and limits the cation mixing in lithium layers. From EXAFS data filling one may see that doping of Al, Co and Mn decreases the Debye-Waller factor of the first shell of Ni-O and weakens the John-Teller distortion of the Ni(III)O-6 octahedron. Doping by Al and Co in LiNiO2 also decreases the Ni-O bond length while the effect on bond length not obrious with Mn doping. All dopings decrease also the second shell Ni-Ni bond length. Moreover, doping of Co and Mn decreases the Debye-Waller factor of the second shell increasing the ordering of the Ni-Ni shell, while Al doping increases the Debye-Waller factor and slightly enhances the disorder degree of the Ni-Ni shell.
学科主题	Chemistry
类目[WOS]	Chemistry, Inorganic & Nuclear
研究领域[WOS]	Chemistry
原文出处	SCI
语种	英语
WOS记录号	WOS:000238380300007
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/238884]
专题	高能物理研究所_多学科研究中心中国科学院高能物理研究所_中国散裂中子源
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Liu, XY,Zhao, YJ,Li, Y,et al. Structural changes induced by doping in LiNiO2[J]. CHINESE JOURNAL OF INORGANIC CHEMISTRY,2006,22(6):1007-1012.
APA	Liu, XY.,Zhao, YJ.,Li, Y.,Xia, DG.,Chu, WS.,...&吴自玉.(2006).Structural changes induced by doping in LiNiO2.CHINESE JOURNAL OF INORGANIC CHEMISTRY,22(6),1007-1012.
MLA	Liu, XY,et al."Structural changes induced by doping in LiNiO2".CHINESE JOURNAL OF INORGANIC CHEMISTRY 22.6(2006):1007-1012.