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Sulfonic acid-functionalized silica through quantitative oxidation of thiol groups
E Cano-Serrano1, J M Campos-Martin, J L G Fierro
1Instituto de Catálisis y Petroleoquímica, CSIC, Campus Cantoblanco, 28049 Madrid, Spain.
Chemical Communications (Cambridge, England)
|February 15, 2003
Abstract:
A simple procedure for the preparation of amorphous silica containing thiol groups which quantitatively affords sulfonic acid groups has been developed, resulting in site densities and activity for the esterification of acetic acid with methanol greater than a commercial Nafion silica composite.