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A General Single-Source Route for the Preparation of Hollow Nanoporous Metal Oxide Structures

Authors

  • Lianzhou Wang Dr.,

    1. ARC Centre of Excellence for Functional Nanomaterials, School of Chemical Engineering and AIBN, The University of Queensland, St Lucia, Qld. 4072 (Australia)
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  • Fengqiu Tang Dr.,

    1. ARC Centre of Excellence for Functional Nanomaterials, School of Chemical Engineering and AIBN, The University of Queensland, St Lucia, Qld. 4072 (Australia)
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  • Kiyoshi Ozawa Dr.,

    1. National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047 (Japan)
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  • Zhi-Gang Chen Dr.,

    1. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua RD, Shenyang 110016 (China)
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  • Aniruddh Mukherj,

    1. ARC Centre of Excellence for Functional Nanomaterials, School of Chemical Engineering and AIBN, The University of Queensland, St Lucia, Qld. 4072 (Australia)
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  • Yingchun Zhu Prof.,

    1. The key Laboratory of Inorganic Coating Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi RD, Shanghai 250100 (China)
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  • Jin Zou Prof.,

    1. School of Engineering and Centre for Microscopy and Microanalysis, The University of Queensland, St Lucia, QLD, 4072 (Australia)
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  • Hui-Ming Cheng Prof.,

    1. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua RD, Shenyang 110016 (China)
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  • G. Q. (Max) Lu Prof.

    1. ARC Centre of Excellence for Functional Nanomaterials, School of Chemical Engineering and AIBN, The University of Queensland, St Lucia, Qld. 4072 (Australia)
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  • The financial support from Australian Research Council (through its Centre’s grant and DPs) is gratefully acknowledged.

Abstract

original image

A hole in one: Hollow nanoporous structures are prepared by controlled decomposition–dissolution. The partial thermal decomposition of transition-metal salts forms a metal oxide shell on the surface of the metal salt particles. Acid washing removes the metal salt cores, resulting in hollow nanoporous metal oxide shells (see picture). This new strategy provides a template-free single-source route to hollow structures.

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