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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 | 23Issue:3Pages: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 | |
| 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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