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利用同位素技术测定了预吸附在Pd表面上的CO在单一及混合同位素气氛下的脱附动力学．实验发现CO的脱附动力学是非线性的，在饱和表面上为一级加二级．在易位化学吸附模型和协同交换机理的基础上，对表面吸附物种的动态结构进行了深入分析讨论，并推导出了非线性脱附动力学的解析表达式．
The desorption kinetics of CO pre-adsorbed on the Pd surface under single and mixed isotopic atmospheres was determined using isotope techniques. The experimental results show that the desorption kinetics of CO is non-linear and it is one-level and two-level on the saturated surface. On the basis of the translocation chemisorption model and the mechanism of synergistic exchange, the dynamic structure of surface adsorbed species is analyzed and discussed in depth, and the analytical expression of nonlinear desorption kinetics is deduced.