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Electronic structure of nanoscale Cu/Pt alloys: A combined X-ray diffraction and X-ray absorption investigations
Chen X(陈兴); Chu WS(储旺盛); Cai Q(蔡泉); Wu ZH(吴忠华); Wu ZY(吴自玉); Chen, X; Chu, WS; Cai, Q; Xia, DG; Wu, ZH; Wu, ZY
2006
发表期刊RADIATION PHYSICS AND CHEMISTRY
卷号75期号:11页码:1622-1625
通讯作者Chinese Acad Sci, Beijing Synchrotron Radiat Facil, Inst High Energy Phys, Beijing 100864, Peoples R China ; Chinese Acad Sci, Grad Sch, Beijing 1000864, Peoples R China ; Univ Sci & Technol China, Hefei 230036, Peoples R China ; Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100022, Peoples R China
摘要PVP-protected Cu/Pt clusters were prepared by glycol/water reduction method and characterized with transmission electron microscopy (TEM), X-ray diffraction (XRD) and absorption spectra. TEM and XRD analysis show that the Cu/Pt clusters with different molar ratio have fcc structure with particle size of about 4 nm, while the lattice parameters in these clusters reduce with increasing Cu concentration. From the X-ray absorption near edge structure (XANES) at Cu-K edge and Pt-L-2,L-3 edge, we demonstrate that the d-electronic states of Cu and Pt are affected by the local environment as a function of Cu/Pt molar ratio. With increasing Cu concentration, Pt loses a fraction of 5d electrons and the hybridization between p- and d-states at Cu sites is enhanced. (c) 2006 Elsevier Ltd. All rights reserved.
文章类型Article; Proceedings Paper
关键词Cu/Pt clusters transmission electron microscopy X-ray diffraction X-ray absorption near-edge structure
学科领域Chemistry; Nuclear Science & Technology; Physics
研究领域[WOS]Chemistry ; Nuclear Science & Technology ; Physics
DOI10.1016/j.radphyschem.2005.11.010
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语种英语
WOS类目Chemistry, Physical ; Nuclear Science & Technology ; Physics, Atomic, Molecular & Chemical
WOS记录号WOS:000242185600036
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被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/239438
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
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Chen X,Chu WS,Cai Q,et al. Electronic structure of nanoscale Cu/Pt alloys: A combined X-ray diffraction and X-ray absorption investigations[J]. RADIATION PHYSICS AND CHEMISTRY,2006,75(11):1622-1625.
APA 陈兴.,储旺盛.,蔡泉.,吴忠华.,吴自玉.,...&Wu, ZY.(2006).Electronic structure of nanoscale Cu/Pt alloys: A combined X-ray diffraction and X-ray absorption investigations.RADIATION PHYSICS AND CHEMISTRY,75(11),1622-1625.
MLA 陈兴,et al."Electronic structure of nanoscale Cu/Pt alloys: A combined X-ray diffraction and X-ray absorption investigations".RADIATION PHYSICS AND CHEMISTRY 75.11(2006):1622-1625.
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