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题名: Formation, distribution, and photoreaction of nano-sized vanadium oxide cluster anions
作者: Yuan, Zhen1, 2; Liu, Qing-Yu1, 2; Li, Xiao-Na1; He, Sheng-Gui1
关键词: High-resolution ; Tandem mass spectrometry ; Nano-sized metal oxide clusters ; Photoreaction
刊名: INTERNATIONAL JOURNAL OF MASS SPECTROMETRY
发表日期: 2016-08-20
卷: 407, 页:62-68
收录类别: SCI
英文摘要: It is experimentally challenging to generate nano-sized metal oxide clusters with significant intensity as well as to resolve a single hydrogen atom by mass spectrometry (TOF-MS). Herein, the high-resolution tandem time-of-flight mass spectrometer is home-made and the experimental apparatus is capable to perform the reactivity study of nano-sized vanadium oxide clusters. The formation and distribution of nano-sized vanadium oxide cluster anions VxOy- (x up to 70) were analyzed and the photoreaction of alkene attached complex V40O101C2H4- (Or V40O101C3H6-) was studied. Larger VxOy- cluster anions can be generated typically under higher O-2 concentration and the intensity proportion (%) of vanadium oxide cluster with a certain oxygen-deficiency value Delta (Delta= 2y-5x-1 for VxOy-) in each V-x series is nearly invariant. In photoreaction of V40O101C2H4- (orV(40)O(101)C(3)H(6)(-)), the transfer of two oxygen atoms from V40O101- to C2H4 (or C3H6 and the generation of V40O99- dominants the channel. The mass resolution of the primary TOF-MS for V4O101- (similar to 1.5 nm) is up to 13002. The mass resolution of the secondary TOFMS for photoreaction is calculated to be about 4530 to resolve parent (V40O101C2H4-) and daughter ions (V40O99-). (C) 2016 Published by Elsevier B.V.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35266
Appears in Collections:分子动态与稳态结构实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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