Citation: Man Yang, Xiaochen Zhao, Yujing Ren, Jia Wang, Nian Lei, Aiqin Wang, Tao Zhang. Pt/Nb-WO_x for the chemoselective hydrogenolysis of glycerol to 1,3-propanediol: Nb dopant pacifying the over-reduction of WO_x supports[J]. Chinese Journal of Catalysis, ;2018, 39(6): 1027-1037. doi: 10.1016/S1872-2067(18)63074-8 shu

Pt/Nb-WO_x for the chemoselective hydrogenolysis of glycerol to 1,3-propanediol: Nb dopant pacifying the over-reduction of WO_x supports

Man Yang ^a,b, ,
Xiaochen Zhao ^a ,
Yujing Ren ^a,b ,
Jia Wang ^c ,
Nian Lei ^a,b ,
Aiqin Wang ^a ,
Tao Zhang ^a

a State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China;
b University of Chinese Academy of Science, Beijing 100049, China;
c College of Forestry, Northwest A & F University, Yangling 712100, Shaanxi, China

Received Date: 2 March 2018
Revised Date: 10 April 2018

Fund Project: This work was supported by the National Natural Science Foundation of China (2169008, 21690084, 21673228, 21303187, 21403218), the Strategic Priority Research Program of the Chinese Academy of Sciences (XDB17020100), Key Projects for Fundamental Research and Development of China (2016YFA0202801), and DICP ZZBS 201612.

Selective hydrogenolysis of glycerol to 1,3-propanediol (1,3-PD) is an important yet challenging method for the transformation of biomass into value-added chemicals due to steric hindrance and unfavorable thermodynamics. In previous studies, chemoselective performances were found demanding and sensitive to H₂ pressure. In this regard, we manipulate the chemical/physical characteristics of the catalyst supports via doping Nb into WO_x and prepared 1D needle-, 2D flake-, and 3D sphere-stack mesoporous structured Nb-WO_x with increased surface acid sites. Moreover, Nb doping can successfully inhibit the over-reduction of active W species during glycerol hydrogenolysis and substantially broaden the optimal H₂ pressure from 1 to 5 MPa. When Nb doping is 2%, supported Pt catalysts showed promising performance for the selective hydrogenolysis of glycerol to 1,3-PD over an unprecedentedly wide H₂ pressure range, which will guarantee better catalyst stability in the long run, as well as expand their applications to other hydrogen-related reactions.
- Nb-doped WO_x,
- Glycerol,
- 1,3-propanediol,
- Selective hydrogenolysis
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Pt/Nb-WOx for the chemoselective hydrogenolysis of glycerol to 1,3-propanediol: Nb dopant pacifying the over-reduction of WOx supports

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通讯作者: 陈斌, bchen63@163.com

Pt/Nb-WO_x for the chemoselective hydrogenolysis of glycerol to 1,3-propanediol: Nb dopant pacifying the over-reduction of WO_x supports