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

Yu Chuan Lin, Keith L. Hohn

研究成果: Article同行評審

9 引文 斯高帕斯(Scopus)

摘要

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.

原文English
頁(從 - 到)215-222
頁數8
期刊Catalysis Letters
107
發行號3-4
DOIs
出版狀態Published - 2006 三月

All Science Journal Classification (ASJC) codes

  • 催化
  • 化學 (全部)

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