Alkaline metals modified Pt-H4SiW12O40/ZrO2 catalysts for the selective hydrogenolysis of glycerol to 1,3-propanediol

- Alkaline metals Li, K, Rb and Cs were efficient for tune acidity of H4SiW12O40.
- Li modified Pt-H4SiW12O40/ZrO2 exhibited superior 1,3-propanediol selectivity.
- 1,3-Propanediol yield was proportional to the concentration of Brønsted acid sites.
- A mechanistic scheme for glycerol hydrogenolysis to 1,3-propanediol was proposed.
- A 120 h long-term performance for Pt-H4SiW12O40/ZrO2 was achieved.