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

H. Oyanagi; Z. H. Sun; Y. Jiang; M. Uehara; H. Nakamura; K. Yamashita; Y. Orimoto; L. Zhang; C. Lee; A. Fukano; H. Maeda

doi:10.1063/1.3700346

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

H. Oyanagi, Z. H. Sun, Y. Jiang, M. Uehara, H. Nakamura, K. Yamashita, Y. Orimoto, L. Zhang, C. Lee, A. Fukano, H. Maeda

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

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.

Original language	English
Article number	084315
Journal	Journal of Applied Physics
Volume	111
Issue number	8
DOIs	https://doi.org/10.1063/1.3700346
Publication status	Published - Apr 15 2012
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1063/1.3700346

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title = "Small copper clusters studied by x-ray absorption near-edge structure",

abstract = "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.",

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AU - Oyanagi, H.

AU - Sun, Z. H.

AU - Jiang, Y.

AU - Uehara, M.

AU - Nakamura, H.

AU - Yamashita, K.

AU - Orimoto, Y.

AU - Zhang, L.

AU - Lee, C.

AU - Fukano, A.

AU - Maeda, H.

PY - 2012/4/15

Y1 - 2012/4/15

N2 - 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.

AB - 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.

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

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