高等学校化学学报

高等学校化学学报 ›› 1986, Vol. 7 ›› Issue (1): 80.

• 研究简报 • 上一篇    下一篇

程序升温脱附的动力学近似公式

石守衡1, 李德山2   

  1. 1. 大连轻工业学院化工系;
    2. 大连药物所
  • 收稿日期:1984-08-06 出版日期:1986-01-24 发布日期:1986-01-24

Approximate Formulas of Kinetics in Process of Temperature Program Desorption

Shi Shouheng1, Li Dershan2   

  1. 1. Chemistry Engineering, Darlian Industry College, Darlian;
    2. Darlian Medication Institute, Dartian
  • Received:1984-08-06 Online:1986-01-24 Published:1986-01-24

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被引次数

1

摘要： 几十年来,程序升温脱附法(TPD方法)被催化理论与实验工作者广泛地用于测定气体在固体催化剂表面的脱附活化能[1-5],和鉴定气体在固体催化剂表面的不同吸附态[6-10],某些热分解反应也采用了线性升温的方法[11]。

Abstract: During last decades, TPDmethod is used for determining heat of desorption of the gases adsorbed on the surface of solid catalyst and for testing state of the gases adsorbed. Even now the method is used in the thermal decomposition reaction. Generally, re-adsorption is ignored in treatment of TPDexperiment data. In the same appraximation condition, it is convenient to calculate the coverage θ if we let (1+βt/T0)1 = 1-βt/T0, where t is the time of reaction, β is the rate of raising temperaiure, and T0 is the temperature where t = 0.

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