Catalysts based on platinum-tin and platinum-gallium in close contact for the selective hydrogenation of cinnamaldehyde

A. J. Plomp, D. M.P. van Asten, A. M.J. van der Eerden, P. Mäki-Arvela, D. Yu Murzin, K. P. de Jong, J. H. Bitter*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

42 Citations (Scopus)

Abstract

Bimetallic platinum-tin and platinum-gallium catalysts supported on carbon nanofibers (CNF) were prepared via reductive deposition precipitation and impregnation. Detailed EXAFS, TEM-EDX and XPS studies showed that reductive deposition precipitation resulted in a close contact of tin with platinum. These bimetallic catalysts displayed an improved selectivity for cinnamaldehyde hydrogenation towards the desired cinnamyl alcohol as compared to the monometallic platinum catalyst and a bimetallic catalyst prepared by impregnation in which such a close interaction was absent. The general applicability of reductive deposition precipitation as synthesis technique was demonstrated using tin and gallium as promoters.

Original languageEnglish
Pages (from-to)146-154
Number of pages9
JournalJournal of Catalysis
Volume263
Issue number1
DOIs
Publication statusPublished - 1 Apr 2009
MoE publication typeA1 Journal article-refereed

Keywords

  • Carbon nanofibers
  • EXAFS
  • Platinum
  • Reductive deposition precipitation
  • Selective hydrogenation
  • Surface redox reaction

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