Structural changes induced by doping in LiNiO2

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	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)
	2006
发表期刊	CHINESE JOURNAL OF INORGANIC CHEMISTRY
卷号	22 期号:6 页码:1007-1012
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
文章类型	Article
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.
关键词	LiNiO2 EXAFS doping local structure
学科领域	Chemistry
研究领域[WOS]	Chemistry ; Chemistry
URL	查看原文
语种	英语
研究领域[WOS]	Chemistry ; Chemistry
WOS类目	Chemistry, Inorganic & Nuclear
WOS记录号	WOS:000238380300007
引用统计
文献类型	期刊论文
条目标识符	http://ir.ihep.ac.cn/handle/311005/238884
专题	多学科研究中心
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.

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