CJCU

Chem. J. Chinese Universities ›› 1992, Vol. 13 ›› Issue (3): 371.

• Articles • Previous Articles     Next Articles

Studies on the Catalytic Activity, TPD and TPSR of CO over Supported Platinum Catalysts

DU Shao-bin1, WANG Jin2   

  1. 1. Department of Chemistry, Zhejiang University, Hangzhou;
    2. Department of Chemistry, Hangzkou University, Hangzhou, 310028
  • Received:1991-03-11 Online:1992-03-24 Published:1992-03-24

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Abstract: The catalytic activity for the oxidation of COon the supported Pt/MeM(Me = H, Cu, Ce) catalysts was investigated.CO-TPDon MeM and Pt/MeM was monitored by TC-GCtechnique.It was found that the peak temperatures of desorbed CO2 were in agreement with the catalytic activities.The results of TPSR(CO2) after a steady-state adsorption of COshow that the peak temperatures of the desorbed CO2 were lower than those of the desorbed CO2 of CO-TPD and the desorbed amount of CO2 and the order of peak temperature well agreed with their activities.Furthermore, the probable mechanism of oxidation of CO over Pt/MeM catalysts was also proposed.

Key words: Mordenite, Temperature programmed desorption, Temperature programmed surface reaction

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