Effect of sol-gel synthesis on physical and chemical properties of V/SiO2 and V/MgO catalysts

Yu-Chuan Lin, Keith L. Hohn

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Catalytic properties of supported vanadium oxide catalysts are highly dependent on surface vanadia configuration and the nature of the support. In this study, the effects of using the same supports (silica and magnesia) from two different preparation procedures on the catalytic properties in methanol partial oxidation and on the vanadium surface structures were investigated. Both types of catalysts were prepared by the incipient-wetness method and characterized using BET, Raman spectroscopy, UV-Vis and H2-TPR to determine the structures of vanadium on the supports' surface. Both aerogel-prepared V/SiO2 and V/MgO catalysts were more active than conventionally prepared samples in methanol partial oxidation. These differences in catalytic results are attributed to the configurations of active phase. It was also found that small vanadium phases were more active in methanol partial oxidation than larger phases.

Original languageEnglish
Pages (from-to)215-222
Number of pages8
JournalCatalysis Letters
Volume107
Issue number3-4
DOIs
Publication statusPublished - 2006 Mar 1

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Vanadium
chemical properties
Chemical properties
vanadium
Sol-gels
methyl alcohol
Physical properties
physical properties
gels
Methanol
catalysts
oxidation
Catalysts
synthesis
Oxidation
vanadium oxides
aerogels
Magnesium Oxide
configurations
moisture content

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Catalysis

Cite this

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Effect of sol-gel synthesis on physical and chemical properties of V/SiO2 and V/MgO catalysts. / Lin, Yu-Chuan; Hohn, Keith L.

In: Catalysis Letters, Vol. 107, No. 3-4, 01.03.2006, p. 215-222.

Research output: Contribution to journalArticle

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