Thermal benzene activation by 3d transition metal(Sc-Cu) oxide cations  

作　　者：Jiatong Cui Yue Zhao Ming Wang Shanshan Wang Jiabi Ma 

机构地区：[1]Key Laboratory of Cluster Science of Ministry of Education,Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials,School of Chemistry and Chemical Engineering,Beijing Institute of Technology,Beijing 100081,China [2]Analysis&Testing Center,Beijing Institute of Technology,Beijing 100081,China

出　　处：《Chinese Chemical Letters》2020年第3期779-782,共4页中国化学快报（英文版）

基　　金：supported by National Key R&D Program of China(No.2016YFC0203000);the National Natural Science Foundation of China(No.21503015);the Fundamental Research Funds for the Central Universities(Nos.22050205,2017CX01008)。

摘　　要：Considering the importance and complexity of benzene oxidation on mineral oxide aerosol surfaces in the atmosphere,gas-phase 3 d-transition metal oxide cations were used as models of active sites on mineral oxide aerosols to mimic the corresponding reactions.The various cations have been prepared by laser ablation and reacted with benzene in a linear ion trap reactor.Of the 103 systematically investigated cations,39 clusters can oxidize benzene at room temperature.In addition to the adsorption channel,other five types of reaction channels were observed,including dehydrogenation of C6H6,charge exchange,hydrogen atom transfer,oxygen atom transfer,and the formation of C6H5O^+radical,among which the first two pathways are prevale nt and the formation of C6H6O^+cations has not been reported in literature.The insight into the benzene oxidation reactions derived from the gas-phase model systems is helpful to build a detailed picture of oxidative mechanisms of C6H6 and its derivatives over corresponding mineral oxide aerosols.

关 键 词：GAS-PHASE REACTIONS Transition metal OXIDE CATIONS BENZENE Mass SPECTROMETRY Ion-molecular reaction 

分 类 号：X513[环境科学与工程—环境工程] O643.12[理学—物理化学]