Journal
CHINESE JOURNAL OF CATALYSIS
Volume 39, Issue 6, Pages 1027-1037Publisher
SCIENCE PRESS
DOI: 10.1016/S1872-2067(18)63074-8
Keywords
Nb-doped WOx; Glycerol; 1,3-propanediol; Selective hydrogenolysis
Funding
- National Natural Science Foundation of China [2169008, 21690084, 21673228, 21303187, 21403218]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDB17020100]
- Key Projects for Fundamental Research and Development of China [2016YFA0202801]
- DICP [ZZBS 201612]
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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 H-2 pressure. In this regard, we manipulate the chemical/physical characteristics of the catalyst supports via doping Nb into WOx and prepared 1D needle-, 2D flake-, and 3D sphere-stack mesoporous structured Nb-WOx, 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 H-2 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 H-2 pressure range, which will guarantee better catalyst stability in the long run, as well as expand their applications to other hydrogen-related reactions. (C) 2018, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
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