Chinese Journal of Catalysis ›› 2012, Vol. 33 ›› Issue (4): 637-644.DOI: 10.1016/S1872-2067(11)60347-1

• Research papers • Previous Articles     Next Articles

Characterization and Catalytic Activity of CeO2-Ni/Mo/SBA-15 Catalysts for Carbon Dioxide Reforming of Methane

HUANG Jina1,3, MA Renxiong2, GAO Zhihua1, SHEN Chaofeng1, HUANG Wei1,*   

  1. 1Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China; 2Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China; 3Department of Applied Chemistry, Yuncheng University, Yuncheng 044000, Shanxi, China
  • Received:2011-10-21 Revised:2011-12-05 Online:2012-04-13 Published:2015-09-09

Abstract: A Ni/Mo/SBA-15 catalyst was modified with CeO2 and compared with the unmodified catalyst. The catalysts were characterized by N2 adsorption, CO2 temperature-programmed desorption, H2 temperature-programmed reduction, Fourier transform infrared spectrometer, X-ray diffraction, scanning electron microscopy, and X-ray photoelectron spectroscopy. Both the Ni/Mo/SBA-15 and CeO2/Ni/Mo/SBA-15 catalysts gave good catalytic activities at atmospheric pressure. The CeO2 impregnated Ni/Mo/SBA-15 catalyst exhibited excellent stability at 800 ºC for 100 h on stream, and after the reaction, carbon deposits were not formed on the catalyst. The Ni/Mo/SBA-15 and CeO2/Ni/Mo/SBA-15 catalysts had a regular hexagonal mesoporous structure. The nickel species and the Ce-Mo oxide components were all in the SBA-15 mesopores. This prevented carbon deposition and sintering of the nickel species in the CeO2/Ni/Mo/SBA-15 catalyst.

Key words: carbon dioxide reforming, methane, nickel, molybdenum, mesoporous molecular sieve SBA-15, cerium-promoted