Small copper clusters studied by x-ray absorption near-edge structure

被引：17

作者：

Oyanagi, H. ^{[1
,2
]}

Sun, Z. H. ^{[1
,2
]}

Jiang, Y. ^{[1
,2
]}

Uehara, M. ^{[3
]}

Nakamura, H. ^{[3
]}

Yamashita, K. ^{[3
]}

Orimoto, Y. ^{[3
]}

Zhang, L. ^{[3
]}

Lee, C. ^{[3
]}

Fukano, A. ^{[1
]}

Maeda, H. ^{[3
,4
,5
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Photon Res Inst, Tsukuba, Ibaraki 3058568, Japan

[2] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Anhui, Peoples R China

[3] Natl Inst Adv Ind Sci & Technol, Measurement Solut Res Ctr, Tosu, Saga 8410052, Japan

[4] Kyushu Univ, Interdisciplinary Grad Sch Engn Sci, Dept Mol & Mat Sci, Kasuga, Fukuoka 8168580, Japan

[5] Japan Sci & Technol Agcy, CREST, Kawaguchi, Saitama 3320012, Japan

来源：

JOURNAL OF APPLIED PHYSICS | 2012年 / 111卷 / 08期

关键词：

CU; SURFACE; XANES; XAFS;

D O I：

10.1063/1.3700346

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The local structure of copper nanoparticles grown in organic solution by reducing Cu(II) hexafluoroacetylacetonate [Cu(hfac)(2)] was studied as-grown by the Cu K-edge x-ray absorption near-edge structure (XANES). Comparison of the experimental XANES spectra with reference materials indicated small copper clusters are formed by ligand-exchange with oleylamine and subsequent reducing by diphenylsilane. The multiple-scattering (MS) calculation for various model clusters consisting of 13-135 atoms suggests that small (13-19 atom) Cu clusters are stabilized without a large deformation. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.3700346]

引用

页数：4

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