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Nickel-Promoted Tungsten Carbide Catalysts for Cellulose Conversion: Effect of Preparation Methods

  1. Dr. Na Ji1,
  2. Dr. Mingyuan Zheng1,
  3. Prof. Aiqin Wang1,
  4. Prof. Tao Zhang1,*,
  5. Prof. Jingguang G. Chen2,*

Article first published online: 29 MAR 2012

DOI: 10.1002/cssc.201100575

Issue

ChemSusChem

ChemSusChem

Special Issue: Sustainability Research in Dalian

Volume 5, Issue 5, pages 939–944, May 2012

Additional Information

How to Cite

Ji, N., Zheng, M., Wang, A., Zhang, T. and Chen, J. G. (2012), Nickel-Promoted Tungsten Carbide Catalysts for Cellulose Conversion: Effect of Preparation Methods. ChemSusChem, 5: 939–944. doi: 10.1002/cssc.201100575

Author Information

  1. 1

    State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, CAS, Dalian 116023 (PR China), Fax: (+86) 411-84685940

  2. 2

    Department of Chemical Engineering, University of Delaware, Newark, DE 19716 (USA), Fax: (+1) 302-831-2085

*State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, CAS, Dalian 116023 (PR China), Fax: (+86) 411-84685940

Publication History

  1. Issue published online: 10 MAY 2012
  2. Article first published online: 29 MAR 2012
  3. Manuscript Revised: 24 NOV 2011
  4. Manuscript Received: 13 SEP 2011

Funded by

  • National Basic Research Program of China. Grant Number: 2009CB226102
  • National Science Foundation of China. Grant Number: 20903089

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Keywords:

  • biomass;
  • heterogeneous catalysis;
  • nickel;
  • tungsten;
  • X-ray diffraction

Abstract

A series of Ni-promoted W2C catalysts was prepared by means of a post-impregnation method and evaluated for the catalytic conversion of cellulose into ethylene glycol (EG). Quite different from our previously reported Ni–W2C/AC catalysts, which were prepared by using the co-impregnation method, the introduction of Ni by the post-impregnation method did not cause catalyst sintering, but resulted in redispersion of the W component, which was identified and characterized by means of XRD, TEM, and CO chemisorption. The highly dispersed Ni-promoted W2C catalyst was very active and selective in cellulose conversion into EG, with a 100 % conversion of cellulose and a 73.0 % yield in EG. The underlying reason for the enhanced catalytic performance was most probably the significantly higher dispersion of active sites on the catalyst.

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