01642nas a2200169   4500008004100000022001400041245012600055210006900181260000800250300001400258490000700272520099600279100002101275700002501296700002101321856013001342       2021                        eng d  a1144-054600aHydrogenolysis of glycerol in an aqueous medium over Pt/WO3/zirconium phosphate catalysts studied by H-1 NMR spectroscopy0 aHydrogenolysis of glycerol in an aqueous medium over PtWO3zircon  cMAR  a5013-50220 v453 a<p>Bifunctional Pt/WO3/zirconium phosphate catalyzes the liquid-phase hydrogenolysis of glycerol in an aqueous medium. H-1 NMR spectroscopy (solvent suppression pulse program) is employed to monitor this reaction. Propanediols (1,3 + 1,2-PDO) formed as the major product along with propanols (1- and 2-POs) as the minor product. A synergistic enhancement in glycerol conversion and selectivity to 1,3-PDO was observed when both Pt and WO3 were present in the catalyst. A volcano-shape variation of catalytic activity with W content was observed. A catalyst with 8 wt% W and 1 wt% Pt exhibited the highest selective hydrogenolysis performance (glycerol conversion = 92.3% and total PDOs selectivity = 45.9% and 1,3-PDO selectivity = 20.8% at 200 degrees C). Dispersed Pt in contact with polytungstate-type WO3 species was found to be the active catalytic site. H-1 NMR spectroscopy is demonstrated as an attractive technique to quantify the products of a glycerol hydrogenolysis reaction.</p>1 aBhowmik, Susmita1 aEnjamuri, Nagasuresh1 aDarbha, Srinivas  uhttps://library.ncl.res.in/content/hydrogenolysis-glycerol-aqueous-medium-over-ptwo3zirconium-phosphate-catalysts-studied-h-1