论文部分内容阅读
CO在金属上的吸附和活化研究是人们深感兴趣的课题之一。对于.CO+H_2反应,不同金属对于CO的吸附能力的差异,会导致产物分布发生变化.吸附热是衡量吸附键强弱的重要标志之一.常见的测定方法有直接量热法、吸附等温线法等,也有用红外光谱法测定.鉴于很多催化剂体系中含有Cu组分,本文采用脉冲热分析方法,对CO在Cu上的吸附热进行测定,考察了温度对吸附热的影响,得到较为满意的结果。
Adsorption and activation of CO on metals are one of the subjects of great interest. For the CO + H 2 reaction, the difference in the adsorption capacity of different metals to CO causes the product distribution to change, and the adsorption heat is one of the important indicators to measure the adsorption bond strength.The common determination methods are direct calorimetry, adsorption isotherm Line method, but also useful for determination of infrared spectroscopy. In view of the fact that many catalyst systems contain Cu components, this paper uses the pulse thermal analysis method to measure the adsorption heat of CO on Cu, examines the temperature on the adsorption heat, get more Satisfying result.