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Issue 89, 2016
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Rhenium-promoted Pt/WO3/ZrO2: an efficient catalyst for aqueous glycerol hydrogenolysis under reduced H2 pressure

Qing Tong,ab  Anyi Zong,ab  Wei Gong,c  Lei Yu*d  and  Yining Fan*a 
Author affiliations

* Corresponding authors

a Key Laboratory of Mesoscopic Chemistry of MOE, Jiangsu Key Laboratory of Vehicle Emissions Control, Jiangsu Provincial Key Laboratory of Nanotechnology, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
E-mail: ynfan@nju.edu.cn
Fax: +86-25-83317761
Tel: +86-25-83594620

b Nanjing University-Yangzhou Chemistry and Chemical Engineering Institute, Yangzhou, China

c Jinling College, Nanjing University, Nanjing 210089, China

d School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, China
E-mail: yulei@yzu.edu.cn

Abstract

Rhenium, the non-noble metal with an acceptable price, was found to be a good additive that largely improved Pt/WO3/ZrO2 catalysis for glycerol hydrogenolysis. Compared with conventionally employed Pt/WO3/ZrO2, the Re-promoted catalyst led to almost quantitative glycerol conversion (>99% vs. 57.7%), giving useful C3 alcohols in excellent total selectivity (>95%) under reduced reaction pressure (2.5 MPa). The addition of Re led to such an impressive enhancement of the catalyst activity that even the reaction performed under atmospheric H2 pressure (0.1 MPa) afforded 96.8% glycerol conversion and a good selectivity of C3 compounds at 95.2%. Further XRD, Raman, BET, CO chemisorption, TEM, H2-TPR, XPS, NH3-TPD, 1H MAS NMR and Py-IR studies indicated that introduction of Re greatly improved the dispersion of Pt and catalyst acidity, and resulted in this largely enhanced catalyst activity.

Graphical abstract: Rhenium-promoted Pt/WO3/ZrO2: an efficient catalyst for aqueous glycerol hydrogenolysis under reduced H2 pressure

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Publication details

The article was received on 23 Aug 2016, accepted on 31 Aug 2016 and first published on 31 Aug 2016


Article type: Paper
DOI: 10.1039/C6RA21198D
Citation: RSC Adv., 2016,6, 86663-86672
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    Rhenium-promoted Pt/WO3/ZrO2: an efficient catalyst for aqueous glycerol hydrogenolysis under reduced H2 pressure

    Q. Tong, A. Zong, W. Gong, L. Yu and Y. Fan, RSC Adv., 2016, 6, 86663
    DOI: 10.1039/C6RA21198D

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