Direct Synthesis of Alkoxysilanes by Gas-solid Reactions

Eiichi Suzuki, Masaki Okamoto, Yoshio Ono

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


Alkoxysilanes can be synthesized from silicon or silicon oxide. For example, trimethoxysilane is formed directly from silicon by reaction with methanol vapor using copper(I) chloride as a catalyst. Silica gel supporting catalytic component, such as potassium hydroxide, reacts with dimethyl carbonate vapor to form tetramethoxysilane. Rice hull ash can also be used as a silica source, the ash reacting with dimethyl carbonate vapor, even in the absence of a catalyst. These reactions are gas-solid reactions. The rate of alkoxysilanes formation was measured and the effect of the reaction variables on the rate was examined. Together with the kinetic measurements, the microscopic measurement of the solid and the surface analysis techniques were employed to know the activation process of the solid surface by the catalysts.

Original languageEnglish
Pages (from-to)103-111
Number of pages9
JournalJournal of The Japan Petroleum Institute
Issue number2
Publication statusPublished - 1994
Externally publishedYes


  • Alkoxysilane formation
  • Copper (I) chloride catalyst
  • Gas-solid reaction
  • Rice hull ash
  • Silica gel
  • Silicon

ASJC Scopus subject areas

  • Fuel Technology
  • Energy Engineering and Power Technology


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