Direct conversion of cellulose into ethanol catalysed by a combination of tungstic acid and zirconia-supported Pt nanoparticles†
Abstract
The H2WO4−Pt/ZrO2 combination catalyses the direct conversion of cellulose into ethanol with a yield of 32% in an aqueous medium under H2. H2WO4 mainly facilitates the cleavage of C–C bonds in the glucose unit, while Pt/ZrO2 with an appropriate fraction of Pt0 and Pt2+ promotes the formation of ethanol through a selective C–O bond activation.