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Directed Preparation of 1,3-Propanediol From Glycerol Via Chemoselective Hydrogenolysis Over Bimetallic Catalyst: Active Sites, Structure-Functional Relationship and Mechanism
Man Yang, Yuxiang Jiao, Yujing Ren
Prog Chem ›› 2024, Vol. 36 ›› Issue (2) : 256-270.
PDF(9611 KB)
PDF(9611 KB)
Directed Preparation of 1,3-Propanediol From Glycerol Via Chemoselective Hydrogenolysis Over Bimetallic Catalyst: Active Sites, Structure-Functional Relationship and Mechanism
1,3-propanediol is one of the most important monomers in the polyester industry. Catalytic conversion of glycerol to 1,3-propanediol has important application value. In this article, we reviewed the research progress of bimetallic catalysts for the hydrogenolysis of glycerol to 1,3-propanediol, especially emphasizing Pt-W catalytic systems with high catalytic efficiency and great industrial application prospects. By reviewing the interaction between W species, with different microstructures and chemical environments, and Pt metal, as well as the structure-performance relationship between Pt-W dual sites and glycerol hydrogenolysis, the influence of in-situ generated Brønsted acid active species on catalytic activity, selectivity, and stability was summarized, the source of in-situ generated Brønsted acid and catalytic mechanism was discussed, and finally, the development of bimetallic catalysts for selective hydrogenolysis of glycerol to 1,3-propanediol was prospected.
Contents
1 Introduction
2 Catalyst system for selective hydrogenation of glycerol to 1,3-Propandiol
2.1 Tungsten-based catalyst
2.2 Rhenium-based catalyst
2.3 Other catalysts
3 Mechanism of selective hydrogenolysis of glycerol to 1, 3-propanediol
3.1 Dehydration-hydrogenation mechanism
3.2 Etherification-hydrogenation mechanism
3.3 Dehydrogenation-dehydration-hydrogenation mechanism
3.4 Chelation-hydrogenation mechanism
3.5 Mechanism of direct hydrogenolysis
4 Conclusion and outlook
glycerol / chemoselective hydrogenolysis / 1,3-propanediol / bimetallic catalyst / catalytic mechanism
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