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    The use of preformed nanoparticles in the production of heterogeneous catalysts

    Access Status
    Fulltext not available
    Authors
    Hondow, N.
    Fuller, Rebecca
    Date
    2014
    Type
    Journal Article
    
    Metadata
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    Citation
    Hondow, N. and Fuller, R. 2014. The use of preformed nanoparticles in the production of heterogeneous catalysts. Journal of Colloid and Interface Science. 417: pp. 396-401.
    Source Title
    Journal of Colloid and Interface Science
    DOI
    10.1016/j.jcis.2013.11.064
    ISSN
    0021-9797
    School
    School of Molecular and Life Sciences (MLS)
    URI
    http://hdl.handle.net/20.500.11937/68852
    Collection
    • Curtin Research Publications
    Abstract

    Preformed iron oxide nanoparticles have been successfully assembled onto alumina and MCM-41 support materials. The particles are found to disperse evenly over the surface of the silicate; however, in the case of the alumina we find that in addition to areas of even distribution there is also some clustering of the particles. The materials are stable under heat treatment, with no signs of further aggregation during calcination. We investigate the reducibility of the materials through H 2 -TPR studies and we find that the particles are reducible around 500-550°C. The reduction process is complete at temperatures where MCM-41 can undergo degradation, supporting that the alumina based materials are more suited to the multiple base oxidation reduction steps in the catalytic cycle. © 2013 Elsevier Inc.

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