Duan M.,Weifu Environmental Catalysts Wuxi Co. |
Li J.,CAS Research Center for Eco Environmental Sciences |
Jia L.,Weifu Environmental Catalysts Wuxi Co. |
Wang J.,Weifu Environmental Catalysts Wuxi Co.
Zhongguo Xitu Xuebao/Journal of the Chinese Rare Earth Society | Year: 2010
The micro-mesoporous molecular sieve was synthesized by hydrothermal synthesis method and Co3O4/Ce-micro-mesoporous molecular sieve catalysts were prepared by doping Ce on micro-mesoporous molecular sieve. The performance of its complete catalytic oxidation on the benzene was investigated, and the catalysts were characterized by nitrogen adsorption desorption, X-ray diffraction(XRD), and temperature programmed reduction (TPR) techniques. The results showed that the addition of Ce increased the activities of Co3O4/MSZ-B. The XRD results showed that the distribution of Co3O4 in the micro mesoporous molecular sieve was not blocked by the addition of Ce. The TPR results revealed that the addition of Ce increased the reducibility of the Co3O4/MSZ-B, and the reducibility of catalysts played a key role in the activity; In addition, the existence of mesoporous in Ce doped Co3O4/ZSM-5 microporous sieve catalysts exerted a negative influence on its activity. Source