| 氦原子碰撞诱导解离表征原子团簇上小分子的吸附 |
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| 引用本文： | 吴晓楠,徐波,马嘉璧,何圣贵. 氦原子碰撞诱导解离表征原子团簇上小分子的吸附[J]. 中国科学:化学, 2011, 0(8): 1379-1386 |
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| 作者姓名： | 吴晓楠 徐波 马嘉璧 何圣贵 |
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| 作者单位： | 北京分子科学国家实验室分子动态与稳态结构国家重点实验室中国科学院化学研究所;中国科学院研究生院; |
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| 基金项目： | 中国科学院“百人计划”和知识创新工程项目(KJCX2-EW-H01); 国家自然科学基金项目(20933008)的资助 |
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| 摘 要： | 研究原子团簇上小分子的吸附和反应对认识一些复杂化学过程的微观机理非常重要,为了表征小分子如何吸附在原子团簇上,我们研制了一套氦原子碰撞诱导解离串级飞行时间质谱装置.该装置配有激光溅射团簇源,团簇在快速流动管里与一氧化碳、水等小分子发生反应,产物团簇通过第一级飞行时间质谱选质后与一束氦气(He)发生碰撞,使用第二级飞行时间质谱检测碰撞碎片的分布.结果表明:一些过渡金属氧化物团簇上小分子的弱吸附、强吸附以及氧化性吸附能够通过该实验装置进行表征.
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| 关 键 词： | 团簇 一氧化碳氧化 水吸附 碰撞诱导解离 飞行时间质谱 |
Characterization of adsorption of small molecules over atomic clusters through collisions with helium beam |
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| WU XiaoNan ,,XU Bo ,MA JiaBi , , HE ShengGui Beijing National Laboratory for Molecular Sciences ,State Key Laboratory for Structural Chemistry of Unstable , Stable Species. Characterization of adsorption of small molecules over atomic clusters through collisions with helium beam[J]. Scientia Sinica Chimica, 2011, 0(8): 1379-1386 |
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| Authors: | WU XiaoNan XU Bo MA JiaBi & HE ShengGui Beijing National Laboratory for Molecular Sciences State Key Laboratory for Structural Chemistry of Unstable Stable Species |
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| Affiliation: | WU XiaoNan 1,2,XU Bo 1,MA JiaBi 1,2 & HE ShengGui 1 1 Beijing National Laboratory for Molecular Sciences (BNLMS),State Key Laboratory for Structural Chemistry of Unstable and Stable Species,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100190,China 2 Graduate University of the Chinese Academy of Sciences,Beijing 100039,China |
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| Abstract: | Study of adsorption and reaction of small molecules over atomic clusters are very important to understand molecular level mechanisms of complex chemical processes.To characterize how small molecules may be absorbed over atomic clusters,a time-of-flight (TOF)/TOF tandem mass spectrometer (MS) employing collision-induced dissociation (CID) with helium atoms has been built.This apparatus is equipped with a laser ablation cluster source.The generated clusters react in a fast flow tube with small molecules such ... |
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| Keywords: | clusters CO oxidation water adsorption collision-induced dissociation time-of-flight mass spectrometry |
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