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Pre-prepared platinum nanoparticles supported on SBA-15 – preparation, pretreatment conditions and catalytic properties

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Abstract

The primary objective of this paper is the complete characterization of Pt/SBA-15 catalysts prepared by sonication aided impregnation. During the experiments (i) the influence of sonication applied for introducing the already prepared platinum nanoparticles into the pores of the silica support, (ii) the pressure used for preparing the tablets and/or wafers for catalytic test, (iii) the temperature of heat treatment on the structural changes of catalyst samples, (iv) the effect of platinum particle concentration, and (v) the removal of rest organic matter from the catalysts by different procedures were systematically studied. The samples were characterized by nitrogen adsorption/desorption measurements (BET), TEM, SAXS, XRD and IR. The catalytic activity of the samples was also investigated in the reaction of cyclohexene hydrogenation.

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Acknowledgment

Authors thank the Hungarian Academy of Sciences and the National Science Foundation for the financial support the project (DMR-0244146). ZK acknowledges the financial support of the MTA Bolyai Janos Research Fellowship.

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Authors and Affiliations

  1. Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Bela ter 1, H-6720, Szeged, Hungary

    Zoltan Kónya, Eva Molnar, G. Tasi, Krisztian Niesz & Imre Kiricsi

  2. Chemistry Department, University of California, Berkeley, Berkeley, CA, 94720, USA

    Krisztian Niesz & Gabor A. Somorjai

Authors
  1. Zoltan Kónya
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  2. Eva Molnar
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  3. G. Tasi
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  4. Krisztian Niesz
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  5. Gabor A. Somorjai
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  6. Imre Kiricsi
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Correspondence to Zoltan Kónya.

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Kónya, Z., Molnar, E., Tasi, G. et al. Pre-prepared platinum nanoparticles supported on SBA-15 – preparation, pretreatment conditions and catalytic properties. Catal Lett 113, 19–28 (2007). https://doi.org/10.1007/s10562-006-9008-2

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  • DOI: https://doi.org/10.1007/s10562-006-9008-2

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