Single-Crystalline Hollow Face-Centered-Cubic Cobalt Nanoparticles from Solid Face-Centered-Cubic Cobalt Oxide Nanoparticles

Authors

  • Ki Min Nam,

    1. Department of Chemistry and School of Molecular Science (BK21), Korea Advanced Institute of Science and Technology, Daejeon, 305-701 (Korea), Fax: (+82) 42-869-5826
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  • Jae Ha Shim,

    1. Department of Chemistry and School of Molecular Science (BK21), Korea Advanced Institute of Science and Technology, Daejeon, 305-701 (Korea), Fax: (+82) 42-869-5826
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  • Hosung Ki,

    1. Department of Chemistry and School of Molecular Science (BK21), Korea Advanced Institute of Science and Technology, Daejeon, 305-701 (Korea), Fax: (+82) 42-869-5826
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  • Sang-Il Choi,

    1. Department of Chemistry and School of Molecular Science (BK21), Korea Advanced Institute of Science and Technology, Daejeon, 305-701 (Korea), Fax: (+82) 42-869-5826
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  • Gaehang Lee,

    1. Department of Chemistry and School of Molecular Science (BK21), Korea Advanced Institute of Science and Technology, Daejeon, 305-701 (Korea), Fax: (+82) 42-869-5826
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  • Jae Kwon Jang,

    1. Department of Chemistry and School of Molecular Science (BK21), Korea Advanced Institute of Science and Technology, Daejeon, 305-701 (Korea), Fax: (+82) 42-869-5826
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  • Younghun Jo Dr.,

    1. Korea Basic Science Institute, Daejeon, 305-303 (Korea)
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  • Myung-Hwa Jung Dr.,

    1. Korea Basic Science Institute, Daejeon, 305-303 (Korea)
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  • Hyunjoon Song Prof.,

    1. Department of Chemistry and School of Molecular Science (BK21), Korea Advanced Institute of Science and Technology, Daejeon, 305-701 (Korea), Fax: (+82) 42-869-5826
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  • Joon T. Park Prof.

    1. Department of Chemistry and School of Molecular Science (BK21), Korea Advanced Institute of Science and Technology, Daejeon, 305-701 (Korea), Fax: (+82) 42-869-5826
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  • This work was supported by a Korea Research Foundation Grant funded by the Korean Government (MOEHRD; KRF-2005-201-C00021) and by the Nano R&D Program (grant 2005-02618) of the Korea Science and Engineering Foundation (KOSEF) funded by MEST. This work was also supported in part by the SRC program (grant R11-2005-008-00000-0) of KOSEF through the Center for Intelligent Nano-Bio Materials at Ewha Woman's University. Prof. D. G. Churchill and Prof. H. Ihee of KAIST are acknowledged for proofreading this manuscript and helpful discussion.

Abstract

original image

Hollow nan': Hollow face-centered cubic (fcc) Co nanoparallelepipeds were prepared by thermolysis of solid fcc CoO nanoparallelepipeds in oleylamine (see TEM image). The solid fcc CoO nanoparallelepipeds are reduced by the oleylamine surfactant to form hollow fcc Co nanoparallelepipeds. Voids and fcc Co are generated on the surface of the solid fcc CoO nanoparallelepipeds by the removal of oxide as carbon monoxide.

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