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Citation: Xin Mei, Zhai Run-Sheng, Zhang Lin-Hu, Guo Xie-Xian. A Study on the Nonlinear Kinetics of CO Desorption under the Gas Ambience on Pd[J]. Acta Physico-Chimica Sinica, ;1995, 11(01): 38-45. doi: 10.3866/PKU.WHXB19950108 shu

A Study on the Nonlinear Kinetics of CO Desorption under the Gas Ambience on Pd

1.
State Key Laboratory of Catalysis,Dalian Institute of Chemical Physics,Academia Sinica,Dalian 116023

Received Date: 20 December 1993
Available Online: 15 January 1995

The kinetics of CO desorption on Pd(111) has been studied by using isotope switch method under the gas-phase pressures of single isotope and mixed ones. The experiments show that the desorption kinetics is non-linear and is first order plus second order on the saturated surface. Based on the delocalized chemisorptions model and gas-surface exchange mechanism, the analytic expressions for the desorption kinetics are derived and a dynamic reasoning of the non-linear kinetics has been described in detail.
- Adsorption,
- Desorption,
- Exchange,
- Kinetics
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