SCI和EI收录∣中国化工学会会刊

›› 2017, Vol. 25 ›› Issue (2): 187-192.DOI: 10.1016/j.cjche.2016.07.016

• Catalysis, Kinetics and Reaction Engineering • Previous Articles     Next Articles

Enhanced properties of solid solution (CeZr)O2 modified with metal oxides for catalytic oxidation of low-concentration methane

Tianyu Guo1, Jianping Du2, Jinting Wu2, Jinping Li1   

  1. 1 Research Institute of Special Chemicals, Taiyuan University of Technology, Taiyuan 030024, China;
    2 College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
  • Received:2016-06-15 Revised:2016-07-26 Online:2017-03-14 Published:2017-02-28
  • Supported by:
    Supported by the National Natural Science Foundation of China (21136007 and 51572185), the Natural Science Foundation of Shanxi Province (2014011016-4) and the Coal-Based Key Scientific and Technological Project of Shanxi Province (MQ2014-10).

Enhanced properties of solid solution (CeZr)O2 modified with metal oxides for catalytic oxidation of low-concentration methane

Tianyu Guo1, Jianping Du2, Jinting Wu2, Jinping Li1   

  1. 1 Research Institute of Special Chemicals, Taiyuan University of Technology, Taiyuan 030024, China;
    2 College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
  • 通讯作者: Jinping Li
  • 基金资助:
    Supported by the National Natural Science Foundation of China (21136007 and 51572185), the Natural Science Foundation of Shanxi Province (2014011016-4) and the Coal-Based Key Scientific and Technological Project of Shanxi Province (MQ2014-10).

Abstract: The solid solution (CeZr)O2 catalyst was synthesized, and it wasmodified with metal oxides by incipient impregnation. Morphology and structure were characterized by X-ray diffraction, transmission electronmicroscope, nitrogen ad/desorption and H2-temperature program reduction techniques. The catalytic properties of methane oxidation were also investigated. The results showed that solid solution possessed a mesoporous structure and exhibited excellent catalytic performance. The activity of solid solution was improved effectively by nickel doping, and the optimal loading is 15 wt%. The stability of (CeZr)O2 and modified (CeZr)O2 indicated that the structure of pristine solid solution played a key role in promoting molecules diffusion and spatial confining oxide particle sintering.

Key words: Methane, Catalyst, Solid solution, Metal doping

摘要: The solid solution (CeZr)O2 catalyst was synthesized, and it wasmodified with metal oxides by incipient impregnation. Morphology and structure were characterized by X-ray diffraction, transmission electronmicroscope, nitrogen ad/desorption and H2-temperature program reduction techniques. The catalytic properties of methane oxidation were also investigated. The results showed that solid solution possessed a mesoporous structure and exhibited excellent catalytic performance. The activity of solid solution was improved effectively by nickel doping, and the optimal loading is 15 wt%. The stability of (CeZr)O2 and modified (CeZr)O2 indicated that the structure of pristine solid solution played a key role in promoting molecules diffusion and spatial confining oxide particle sintering.

关键词: Methane, Catalyst, Solid solution, Metal doping