科研之友
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摘要
Propylsulfonic acid-functionalized cubic mesoporous silica was prepared through in situ oxidization of mercaptopropyl groups with H(2)O(2) during co-condensation of tetraethyl orthosilicate and 3-mercapto-propyl trimethoxysilane under strong acidic conditions. The materials obtained with 5-20 mol % loadings of sulfonic acid groups had surface areas of up to 1300 m(2)/g and pore sizes of around 2.5 nm. Next, the catalytic activity of this material was investigated in esterification of palmitic acid as a compound model in the process of biodiesel production. Methyl ester production by this new nanoporous catalyst shows a very remarkable yield during a mild liquid phase reaction.
- 出版日期2010
