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

Zoltan Kónya, Eva Molnar, G. Tasi, Krisztian Niesz, Gabor A. Somorjai, Imre Kiricsi

Research output: Contribution to journalArticle

28 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)19-28
Number of pages10
JournalCatalysis Letters
Volume113
Issue number1-2
DOIs
Publication statusPublished - Jan 1 2007

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Keywords

  • Cyclohexene hydrogenation
  • Mesoporous materials
  • Metal nanoparticles

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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