Chemistry Letters
Online ISSN : 1348-0715
Print ISSN : 0366-7022
ISSN-L : 0366-7022
A Novel Silver-Silica Catalyst Used for the Manufacture of Formaldehyde
Wei-Lin DaiYong CaoHe-Xing LiJing-Fa Deng
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1997 Volume 26 Issue 3 Pages 197-198

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Abstract

Several novel silver-silica catalysts were prepared by means of sol-gel method, which exhibited high activity and selectivity in the catalytic oxidation of methanol to formaldehyde. The optimum content of silver was determined as 20%(w/w.), which showed 97% conversion and 85.5% yield of formaldehyde. Some other superiority of the as-prepared silver catalysts was observed by comparing with the commercial silver catalysts, including pumice-supported silver and electrolytic silver. XRD patterns reveal that silver is present as a crystalline state in the Ag-SiO2 catalysts.

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© 1997 The Chemical Society of Japan
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