Preparation of nanosized bimetallic Ni-Sn and Ni-Au/SiO2 catalysts by SOMC/M. Correlation between structure and catalytic properties in styrene hydrogenation

Layane Deghedi*, Jean-Marie Maurice Basset, Gérard Bergeret, Jean Pierre Candy, Manuel Corral Valero, Jean Alain Dalmon, Aimery De Malimann, Anne Claire Dubreuil, Lars Fischer

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

The aim of this study is to prepare silica-supported Ni-X bimetallic catalysts, to characterize them and to compare their catalytic activity in the hydrogenation of styrene, as well as their selectivity in the hydrogenation of the styrene's olefinic double bond instead of the hydrogenation of the aromatic ring. The element X is grafted in a controlled way on the supported nickel particles, and is chosen according to its electronegativity, which is either equivalent (Sn) or higher (Au) than the electronegativity of Ni, in order to study the geometrical and/or electronic effects due to the doping of nickel. Among the prepared samples, the Ni-Au/SiO2 catalyst has exhibited high activity and high selectivity in the hydrogenation of styrene into ethylbenzene, suggesting that a combination of geometric and electro-attractor effects are involved.

Original languageEnglish (US)
Title of host publicationScientific Bases for the Preparation of Heterogeneous Catalysts - Proceedings of the 10th International Symposium
PublisherElsevier Inc.
Pages617-620
Number of pages4
ISBN (Print)9780444536013
DOIs
StatePublished - Jan 1 2010

Publication series

NameStudies in Surface Science and Catalysis
Volume175
ISSN (Print)0167-2991

Keywords

  • Bimetallic catalyst
  • Ni-Au
  • Ni-Sn
  • Selective hydrogenation

ASJC Scopus subject areas

  • Catalysis
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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