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A novel preparation of macroscopic beads of porous silica

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Abstract

We report a new method for preparing porous silica beads using a high internal phase emulsion (HIPE) sol–gel templating method. The method uses a silica sol based HIPE and does not rely on a polymeric support to produce the final structure. As a result beads may be formed readily in large numbers. The beads have an open porous structure commensurate with the formation of a HIPE precursor phase. We also describe how the rheology of the HIPE reflects the formation of an open porous structure and how the viscosity of the HIPE can affect the shape of the beads and how HIPE destabilization may be used to vary the pore size.

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Notes

  1. See supplementary information.

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Acknowledgments

We would like to thank the RCUK, and the China Scholarship Council for funding.

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Authors and Affiliations

  1. The School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, UK

    M. Nareen, A. Humphries & P. Christian

  2. Department of Solid State Electronics, Huazhong University of Science and Technology, 430074, Wuhan, People’s Republic of China

    Y. Hu

Authors
  1. Y. Hu
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  2. M. Nareen
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  3. A. Humphries
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  4. P. Christian
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Corresponding author

Correspondence to P. Christian.

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Hu, Y., Nareen, M., Humphries, A. et al. A novel preparation of macroscopic beads of porous silica. J Sol-Gel Sci Technol 53, 300–306 (2010). https://doi.org/10.1007/s10971-009-2091-2

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  • DOI: https://doi.org/10.1007/s10971-009-2091-2

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