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Surface Reaction Rate Equation and Molecule Reaction Probability of SnO2/CeO2
Yu Ping*,Song Yuanfeng,Yuan Qinghua,Wang Leilei,Li Jianming,Qiu Nanyuan
Author NameAffiliationE-mail
Yu Ping* School of Chemistry and Chemical Engineering, Shandong University, Ji’nan 250061 yupping@sdu.edu.cn 
Song Yuanfeng School of Chemistry and Chemical Engineering, Shandong University, Ji’nan 250061  
Yuan Qinghua Laboratory of Nanothin film Electric Function Material, Shandong University, Ji’nan 250061  
Wang Leilei School of Chemistry and Chemical Engineering, Shandong University, Ji’nan 250061  
Li Jianming Laboratory of Nanothin film Electric Function Material, Shandong University, Ji’nan 250061  
Qiu Nanyuan Laboratory of Nanothin film Electric Function Material, Shandong University, Ji’nan 250061  
Abstract:
The principle and experimental law of testing sets to test reaction temperature change were introduced. Using “powder sputtering plane thin-film SnO2/CeO2 alcohol sensor”, the reaction temperature change was tested and the law of versus gas concentration was given by the inserting method. The rate equation of surface reaction was deduced and reaction probability of surface molecule was calculated. The general reaction rate equation includes two kinds of experiential formula—hyperbolic and power function formula and the concept of molecule reaction probability is minor, which in general is 10-3-10-5.
Key words:  Reaction temperature change, Reaction rate, Reaction probability
FundProject:
SnO2/CeO2表面反应速率方程和分子反应几率
于萍*,宋远锋,袁庆华,王蕾蕾,李建明,裘南畹
摘要:
介绍了反应温变测试装置原理及其实验规律,利用粉末溅射平面薄膜型SnO2/CeO2酒敏传感器测试了反应温变;并用内插法给出了反应温变随酒气气体浓度变化的规律.对表面反应速率方程进行了推导,并对分子表面反应的几率进行了计算.给出了普遍的反应速率方程,它包括了两种常用的经验公式:双曲线型和幂函数型公式;同时得到了分子反应几率是小的概念,其值一般为10-3~10-5.
关键词:  反应温变  反应速率  反应几率
DOI:10.1088/1674-0068/18/4/573-576
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