物理化学学报 >> 1991, Vol. 7 >> Issue (01): 125-128.doi: 10.3866/PKU.WHXB19910123

研究简报 上一篇    

Pt/HM和Pd/HM催化剂表面氧的恢复与供出活化能测定

郑小明; 顾越鹏; 金松寿   

  1. 杭州大学催化研究室
  • 收稿日期:1989-07-24 修回日期:1990-09-27 发布日期:1991-02-15
  • 通讯作者: 郑小明

Measurement of the Activation Energy of Oxygen Offering and Reproducing on Pt/HM,Pd/HM Catalysts

Zheng Xiao-Ming; Gu Yue-Peng; Jin Song-Shou   

  1. Department of Chemistry, Hangzhou University
  • Received:1989-07-24 Revised:1990-09-27 Published:1991-02-15
  • Contact: Zheng Xiao-Ming

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关键词: 活化能, 催化剂, 氧化, Pt, Pd

Abstract: Pulse-reacting experiments of gaseous CO with catalyst surface oxygen and gaseous O_2 with reduced catalyst surface were designed in order to measure the activation energy of oxygen offering and the activation energy of oxygen reproducing on the catalyst surface. By the separate measurement of these two kinds of activation energy, the difference in behavior of Pt/HM and Pd/HM catalysts was explained.
The activation energy of oxygen offering on Pt/HM is lower than that on Pd/HM, but the oxygen reproducing activation energy on Pt/HM is higher than that on Pd/HM.

Key words: Activation energy, Catalyst Oxidation, Pt, Pd