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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 PublicationNUCLEAR SCIENCE AND TECHNIQUES
ISSN1001-8042
Volume23Issue:3Pages:129
AbstractCopper 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 BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000307905000001
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://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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