Oxidation dynamics of metal atoms in gas phase studied by crossed beam and time-sliced velocity map ion imaging

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• 英文论文题名：Oxidation dynamics of metal atoms in gas phase studied by crossed beam and time-sliced velocity map ion imaging
• 论文作者：Fangfang Li ; Changwu Dong ; Jiaxing Liu ; Fengyan Wang
• 英文论文作者：Fangfang Li ; Changwu Dong ; Jiaxing Liu ; Fengyan Wang ; Department of Chemistry ; Fudan University
• 年：2016
• 作者机构：Department of Chemistry, Fudan University;
• 英文论文关键词：slice imaging ; crossed beam ; laser ablation ; state-to-state reaction dynamics
• 会议召开时间：2016-07-01
• 会议录名称：中国化学会第30届学术年会摘要集-第四十四分会：化学动力学
• 语种：英文
• 分类号：O643.1
• 学会代码：ZGHY
• 会议名称：中国化学会第30届学术年会-第四十四分会 ; 化学动力学
• 会议地点：中国辽宁大连
• 主办单位：中国化学会
• 学会名称：中国化学会
• 页数：1
• 文件大小：175k
• 原文格式：D
• 会议级别：全国

摘要

Recently we have employed time-sliced velocity map ion imaging,in combination with crossed beam and laser ablation,to study the reaction mechanism of the oxidation dynamics of aluminum atoms.The reaction,Al(~2P_(1/2,3/2))+O_2(X~3Σ_(g-)→AlO(X~2Σ~+)+O(~3P_J),has been studied at low collision energy about 1.5 kcal/mol.The Al atomic beam was generated by laser ablation and carried out by the supersonic Ar beam,and then crossed O_2 supersonic beam at an intersection angle of 90°.The product AlO was detected by(1+1)resonance-enhanced multiphoton ionization via AlO((D~2Σ~+-X~2Σ~+)transition.The slice images of AlO at specific rotational and vibrational states were recorded and differential cross sections of products have been obtained directly for respective A10(X~2Σ~+,v=0,N=1-51)rovibrational state.The reaction dynamics of the Al atoms will be discussed with a full picture of vector correlation between reactant velocity k,product velocity k'and rotational angular momentum J'.
Recently we have employed time-sliced velocity map ion imaging,in combination with crossed beam and laser ablation,to study the reaction mechanism of the oxidation dynamics of aluminum atoms.The reaction,Al(~2P_(1/2,3/2)) + O_2(X~∑g-)→AlO(X~2∑~+) + O(~3P_J),has been studied at low collision energy about 1.5 kcal/mol.The Al atomic beam was generated by laser ablation and carried out by the supersonic Ar beam,and then crossed O_2 supersonic beam at an intersection angle of 90°.The product AlO was detected by(1 + 1) resonance-enhanced multiphoton ionization via AlO((D~2∑~+-X~2∑~+) transition.The slice images of AlO at specific rotational and vibrational states were recorded and differential cross sections of products have been obtained directly for respective A10(X~2∑~+,v = 0,N=1-51) rovibrational state.The reaction dynamics of the Al atoms will be discussed with a full picture of vector correlation between reactant velocity k,product velocity k' and rotational angular momentum J'.

引文

[1]Changwu,Dong;Jiaxing,Liu;Fangfang Li,Fengyan,Wang.Chin.J.Chem.Phys.2016,29(1):109.
    [2]Wang,Fengyan;Lin,Jui-San;Liu,Kopin.J.Chem.Phys.2014,140(8):084202