XAFS study of Cu2+ in aqueous solution of CuBr2

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	XAFS study of Cu2+ in aqueous solution of CuBr2
	Dai Binbin(戴彬彬）; Wang Qian; Ma Jingyuan; Li Jiong; Zhang Shuo; Huang Yuying; Huang Wei; Wu Guozhong（吴国忠）; Zou Yang; Jiang Zheng（姜政）; Xu Hongjie（徐洪杰）
	2012
Source Publication	NUCLEAR SCIENCE AND TECHNIQUES
ISSN	1001-8042
Volume	23 Issue:3 Pages:129
Abstract	Copper ion is the essential microelement to many organisms. In this paper, the local structure of Cu2+ in CuBr2 aqueous solutions with different concentrations are investigated by using X-ray absorption fine structure (XAFS) technique. XANES (X-ray Absorption Near Edge Structure) spectra indicate that charge transfer from Br- to Cu2+ decreases with the solution concentration, which lead to a shift of the absorption edge. The shoulder appearing at the rising edge proves to be characteristic of a tetragonal distortion. The Fourier transform magnitudes of EXAFS (Extended X-ray absorption fine structure) data of Cu species suggest that more Cu-Br bonds may exist in high concentrations. A fivefold coordination configuration like a pyramid is used as the fitting parameters. From the analysis of the coordination numbers, the proportion of Cu-O and Cu-Br is 4:1 in the saturated solution. The Br atom is on the equatorial plane of the model. The fitting results agree well with the experiment data.
Indexed By	SCI
Language	英语
Funding Project	应物所项目组
WOS ID	WOS:000307905000001
Citation statistics	Cited Times:1[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.sinap.ac.cn/handle/331007/12916
Collection	中科院上海应用物理研究所2011-2020年
Recommended Citation GB/T 7714	Dai Binbin,Wang Qian,Ma Jingyuan,et al. XAFS study of Cu2+ in aqueous solution of CuBr2[J]. NUCLEAR SCIENCE AND TECHNIQUES,2012,23(3):129.
APA	Dai Binbin.,Wang Qian.,Ma Jingyuan.,Li Jiong.,Zhang Shuo.,...&Xu Hongjie.(2012).XAFS study of Cu2+ in aqueous solution of CuBr2.NUCLEAR SCIENCE AND TECHNIQUES,23(3),129.
MLA	Dai Binbin,et al."XAFS study of Cu2+ in aqueous solution of CuBr2".NUCLEAR SCIENCE AND TECHNIQUES 23.3(2012):129.

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