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Issue 67, 2016, Issue in Progress
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Catalytic conversion of glucose into alkanediols over nickel-based catalysts: a mechanism study

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Abstract

The conversion of isotope-labeled glucose (D-1-13C-glucose) into alkanediols was carried out in a batch reactor over a Ni–MgO–ZnO catalyst to reveal the C–C cleavage mechanisms. The unique role of the MgO–ZnO support was highlighted by 13C NMR and GC-MS analysis qualitatively and the MgO–ZnO favored isomerization of glucose to fructose. 13C NMR, GC-MS and HPLC analysis demonstrated that the C1 position of ethylene glycol, the C1 and C3 positions of 1,2-propanediol and the C1 position of glycerin were labeled with 13C, which is attributed to a C–C cleavage at D-1-13C-glucose's corresponding positions through retro-aldol condensation. A hydrogenolysis followed by hydrogenation pathway was proposed for glucose converted into alkanediols at 493 K with 6.0 MPa of H2 pressure over Ni based catalysts.

Graphical abstract: Catalytic conversion of glucose into alkanediols over nickel-based catalysts: a mechanism study

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Supplementary files

Article information


Submitted
07 Jun 2016
Accepted
21 Jun 2016
First published
22 Jun 2016

RSC Adv., 2016,6, 62747-62753
Article type
Paper

Catalytic conversion of glucose into alkanediols over nickel-based catalysts: a mechanism study

Z. Tan, G. Miao, C. Liu, H. Luo, L. Bao, L. Kong and Y. Sun, RSC Adv., 2016, 6, 62747
DOI: 10.1039/C6RA14738K

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