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题名: Two Electron Reduction: From Quantum Dots to Metal Nanoclusters
作者: Jin, Shan1, 2; Wang, Shuxin1, 2; Xiong, Ling3; Zhou, Meng4, 5; Chen, Shuang1, 2; Du, Wenjun1, 2; Xia, Andong4, 5; Pei, Yong3; Zhu, Manzhou1, 2
刊名: CHEMISTRY OF MATERIALS
发表日期: 2016-11-08
卷: 28, 期:21, 页:7905-7911
收录类别: SCI
英文摘要: The quantum dots (QDs) and metal nanoclusters (MNCs) have recently attracted increasing interest due to their intriguing physical-chemical properties. Nevertheless, the inherent correlations between them have rarely been explored. In this study, we successfully achieved the conversion of the silver QDs ([Ag62S13(SBut)(32)](4+)) to silver MNCs ([Ag62S12(SBut)(32)](2+)) via the electrochemical reduction method. A key intermediate could be obtained by setting the voltage at (-0.6) V, and its atomic structure has been determined to be [Ag62Si3(SBut)(32)](2+) by single crystal X-ray crystallography. After that, the centroid S atom in the Ag14S cubic core can be extruded out of the clusters through the window via an energy favorable route during the reducing process which will be reported for the first time. The detailed conversion process and the accompanying changes of optical properties were studied. Our work revealed a unique case that QDs could be converted to MNCs.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35702
Appears in Collections:分子反应动力学实验室_期刊论文

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作者单位: 1.Anhui Univ, Dept Chem, Hefei 230601, Anhui, Peoples R China
2.Anhui Univ, Ctr Atom Engn Energy Mat, Hefei 230601, Anhui, Peoples R China
3.Xiangtan Univ, Minist Educ, Key Lab Environm Friendly Chem & Applicat, Dept Chem, Xiangtan 411105, Hunan Province, Peoples R China
4.Chinese Acad Sci, Inst Chem, State Key Lab Mol React Dynam, Beijing 100190, Peoples R China
5.Chinese Acad Sci, Inst Chem, BNLMS, Beijing 100190, Peoples R China
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