Dehydration of glycerol in gas phase using heteropolyacid catalysts as active…

Abstract. Different silica-, alumina-, and aluminosilicate-supported heteropolyacid catalysts were prepared using phosphomolybdic acid H3PMo12O40·xH2O, phosphotungstic acid H3PW12O40·xH2O, silicotungstic acid H4SiW12O40·xH2O, and ammonium phosphomolybdate (NH4)3PMo12O40·xH2O as precursor compounds. The as-synthesised solids were characterised by nitrogen adsorption, XRD, TG/DTA, Raman s…