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Issue 22, 2011
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Synthesis and characterization of zirconia-grafted SBA-15 nanocomposites

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Abstract

The preparation of highly ordered mesoporous zirconia is of special interest when targeting applications in catalysis. Nevertheless, most of the previously reported attempts led to materials with a low hydrothermal stability. Herein, we accordingly report about the benefit of using mesoporous silica as a host support in which accessible zirconia crystallites are stabilized on the surface. The zirconia surface coverage could be tuned and optimized by playing on the most sensitive synthesis parameters, namely the quantity of zirconia, the calcination temperature and the pore diameter of the host support. The acid properties of the so-obtained materials were determined, showing a remarkable linear relationship between the amount of introduced zirconia and the number of acid sites, which evidenced a high accessibility of the acid sites in the nano-composite, due to a homogeneous dispersion of the zirconia phase in the pores of the silica host support.

Graphical abstract: Synthesis and characterization of zirconia-grafted SBA-15 nanocomposites

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Publication details

The article was received on 31 Dec 2010, accepted on 14 Mar 2011 and first published on 19 Apr 2011


Article type: Paper
DOI: 10.1039/C0JM04588H
Citation: J. Mater. Chem., 2011,21, 8159-8168
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    Synthesis and characterization of zirconia-grafted SBA-15 nanocomposites

    B. Katryniok, S. Paul, M. Capron, S. Royer, C. Lancelot, L. Jalowiecki-Duhamel, V. Bellière-Baca, P. Rey and F. Dumeignil, J. Mater. Chem., 2011, 21, 8159
    DOI: 10.1039/C0JM04588H

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