Preparation of new type of Sn-Pt/SiO2 catalysts for the hydrogenation of crotonaldehyde

J. L. Margitfalvi, I. Borbáth, A. Tempos

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

In this paper new aspects of anchoring tin organic moieties onto platinum are described. In the earlier method adsorbed hydrogen was exclusively used for tin anchoring resulting in a monolayer of tin organic moieties at the Pt surface. In the new approach the anchoring is carried out in the presence of large excess of tin tetraethyl and oxygen has been added during the tin anchoring reaction. In the new approach new sites for tin anchoring were generated by oxygen. Experimental evidences were obtained for the formation of Surface Complexes in the Second Layer (SCSL). The formation of SCSL is a multistep process. The Sn-Pt/SiO2 catalysts prepared in this way showed high SC=O selectivity in the hydrogenation of crotonaldehyde to crotylalcohol. The SC=O selectivity strongly depended on the Snanch/Pts ratio. Slightly higher SC=O selectivities were obtained in the gas phase than in the liquid phase hydrogenation (around 80 and 50%, respectively).

Original languageEnglish
Pages (from-to)195-204
Number of pages10
JournalStudies in Surface Science and Catalysis
Volume118
Publication statusPublished - 1998

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2-butenal
Tin
Hydrogenation
hydrogenation
tin
catalysts
preparation
Catalysts
selectivity
Oxygen
Platinum
oxygen
Hydrogen
Monolayers
Gases
liquid phases
platinum

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Catalysis

Cite this

Preparation of new type of Sn-Pt/SiO2 catalysts for the hydrogenation of crotonaldehyde. / Margitfalvi, J. L.; Borbáth, I.; Tempos, A.

In: Studies in Surface Science and Catalysis, Vol. 118, 1998, p. 195-204.

Research output: Contribution to journalArticle

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