Creation of Bronsted acid sites on Sn-based solid catalysts for the conversion of biomass

摘要

Hydroxyl-attached Sn species are highly dispersed on the surface of mesoporous silica (SBA-15) by the grafting of dlmethyldi-chlorostannane followed by calcination to transform the methyl groups into hydroxyl groups (S-Sn-OH). S-Sn-OH has both Lewis and Bronsted acidic sites, resulting in superior catalytic activities in the acetalisation of glycerol.