Hydrogenation of ethylene and cyclohexene catalyzed by colloidal platinum particles obtained in polymerized vesicles

Kazue Kurihara, János H. Fendler, Isabelle Ravet, János B. Nagy

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)

Abstract

Small platinum particles of colloidal size (5̃0 - 60 Å) are readily obtained by reducing K2PtCl4, entrapped in polymerized vesicles, by means of UV irradiation. These particles can be used in catalytic hydrogenation either directly in the vesicle (ethylene hydrogenation) or indirectly by depositing them on silica gel (cyclohexene hydrogenation). The activity of vesicle-entrapped platinum increases with decreasing particle size. The utilization of this catalyst is limited to reactants which can diffuse through the polymerized wall of the vesicle. This disadvantage is eliminated by destroying the vesicles prior to the deposition of the platinum particles on silica gel. In this case the catalytic activities are similar to those of other catalysts prepared by classical methods.

Original languageEnglish
Pages (from-to)325-335
Number of pages11
JournalJournal of Molecular Catalysis
Volume34
Issue number3
DOIs
Publication statusPublished - 1986 Mar
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)

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