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Shell mimetics

Authors

  • Prof. Geoffrey A. Ozin,

    Corresponding author
    1. Materials Chemistry Research Group Lash Miller Chemical Laboratories University of Toronto 80 St. George Street Toronto, Ontario, M5S 3H6 (Canada)
    • Materials Chemistry Research Group Lash Miller Chemical Laboratories University of Toronto 80 St. George Street Toronto, Ontario, M5S 3H6 (Canada)
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  • Hong Yang,

    1. Materials Chemistry Research Group Lash Miller Chemical Laboratories University of Toronto 80 St. George Street Toronto, Ontario, M5S 3H6 (Canada)
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  • DR. Igor Sokolov,

    1. Materials Chemistry Research Group Lash Miller Chemical Laboratories University of Toronto 80 St. George Street Toronto, Ontario, M5S 3H6 (Canada)
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  • DR. Neil Coombs

    1. Imagetek Analytical Imaging 32 Manning Avenue Toronto, Ontario, M6 2K4 (Canada)
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  • Financial support from Mobil Technology Company is highly appreciated. HY is grateful for an Ontario Graduate Scholarship held during this research. Technical discussions with Professor Raymond Kapral, about the detailed phenomenology of the reaction-diffusion growth dynamics of mesoporous silica over three spatial dimensions, proved to he most helpful. HY also thanks Mr. F. Neud for assistance with field-emission SEM.

Abstract

The synthesis of mesoporous silica sell-shapes, with spiral and gyroid forms and ornate surface designs (see the inside front cover for examples), is described. High-resolutioin SEM, TEM, and AFM were used to establish the spatial relationship between the bulk and surface mesosstructure and the overall morphpology of the shell mimies. The various stages in the growth of the shell-shapes are described, which create silicified shell forms with periodic mesopores but devoid of microcystalline order.

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