Chem. J. Chinese Universities ›› 2015, Vol. 36 ›› Issue (9): 1779.doi: 10.7503/cjcu20150138

• Physical Chemistry • Previous Articles     Next Articles

Liquid Phase Hydrogenation of Maleic Anhydride over Ni/TiO2 Catalysts with Different TiO2 Polymorphs

MENG Zhiyu, ZHANG Yin*(), ZHAO Lili, ZHANG Hongxi, ZHAO Yongxiang*()   

  1. Engineering Research Center of Ministry of Education for Fine Chemicals, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
  • Received:2015-02-09 Online:2015-09-10 Published:2015-07-06
  • Contact: ZHANG Yin,ZHAO Yongxiang E-mail:sxuzhy@sxu.edu.cn;yxzhao@sxu.edu.cn
  • Supported by:
    † Supported by the International S&T Cooperation Program of China(No.2013DFA40460), the National Natural Science Foundation for Young Scientists of China(No.21303097), the Special Foundation for Major Science and Technology in Shanxi Province “12nd-5-Year Plan”, China(No.201111010101) and the Natural Science Foundation of Shanxi Province, China(No.2013011010-4)

Abstract:

Ni/TiO2 catalysts with anatase and rutile titania as supports were prepared via the incipient impregnation method and were applied in the liquid phase hydrogenation of maleic anhydride. All catalysts were characterized by N2 physical adsorption-desorption, H2-temperature programmed reduction(H2-TPR), X-ray diffraction(XRD), H2-temperature programmed desorption(H2-TPD) and X-ray photoelectron spectroscopy(XPS). The evaluation results show that the activity of C=O hydrogenation of catalyst with anatase TiO2 as support was significantly higher than that with rutile TiO2 as support. The higher activity of C=O hydrogenation was attributed to a higher concentration of the oxygen vacancies produced during the reduction process. Oxygen vacancies could promote the hydrogenation of C=O group by accepting lone pair of electrons of oxygen in C=O group.

Key words: Anatase TiO2, Ni-based catalyst, Liquid phase hydrogenation of maleic anhydride, Succinic anhydride, γ-Butyrolactone

CLC Number: 

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