Adsorption and activation of O2 or NO on heavy metal clusters
作者单位：School of Chemical Science and EngineeringTongji University
会议名称：《第十五届全国化学动力学会议》
会议日期：2017年
学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学]
关 键 词：cluster reactions flow-reactor heavy metals adsorption of O2 adsorption NO
摘 要：We studied low-temperature adsorption and activation of O2 or NO on heavy metal clusters of Agn+/-, Aun+/-, Bin+/-, Pbn+/-etc., which contain two to tens of atoms. The reaction rates of Agn+/-and Agn+/-are closely related to their global electronic properties, while nearly independent on local structures of the adsorption sites. For Bin+/-and Pbn+/-, both the electronic properties and the local adsorption sites have significant effects. These observations imply different reaction mechanisms of these molecules on the heavy metal clusters, providing more profound views on the adsorption and activation processes on bulky metal surfaces. The reactions of O2 or NO on gold or silver clusters are also closely related to the processes on real catalysts containing dispersed gold or silver.