Preparation of Layer Structure-Controlled Ru-Sn-Al2O3 Catalysts and Their Reactivity

M. Toba, S. Tanaka, S. Niwa, F. Mizukami, Z. Koppány, L. Guczi

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

In order to achieve functional group selective hydrogenation, the layer structure of Ru-Sn-AlO23 catalysts was controlled by using sol-gel, powder impregnation and combined sol-gel impregnation methods. The properties of the catalysts and effectiveness in hydrogenation of dimethyl terephthalate were examined. The surface Sn contents of the catalysts characterized by X-ray photoelectron spectroscopy depended on the preparation method, in spite of almost the same bulk Ru and Sn compositions measured by X-ray fluorescence analyses. TPR and CO adsorption of the catalysts also depended on the preparation method. With regard to the conversion rate of dimethyl terephthalate and the rate of product conversion from methyl 4-hydroxy methylbenzoate to p-xylene via methyl p-toluate, Ru impregnation catalysts had higher rates than the other catalysts.

Original languageEnglish
Pages (from-to)1037-1041
Number of pages5
JournalJournal of Sol-Gel Science and Technology
Volume13
Issue number1-3
Publication statusPublished - 1998 Jan
Externally publishedYes

Keywords

  • Catalyst preparation
  • Dimethyl terephthalate
  • Hydrogenation
  • Ruthenium-tin-alumina
  • X-ray photoelectron spectroscopy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Chemistry(all)
  • Biomaterials
  • Condensed Matter Physics
  • Materials Chemistry

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