Reaction of Cationic Vanadium Oxide Clusters with Ethylene in a Flow Tube Reactor
- Received Date: 2007-06-28
- Rev Recd Date: 2007-07-13
Abstract: A time of °ight mass spectrometer coupled with a cluster formation and reaction source is employed to study the reactivity of cationic vanadium oxide clusters (VmOn+) toward ethylene (C2H4) in the gas phase. The cationic vanadium oxide clusters with m=1-10 and n=1-26 (depending on m) are generated by reaction of laser ablation created vanadium plasma with O2 in a supersonic expansion and then reacted with the ethylene in a °ow tube reactor. Hydrogen atoms are attached in most of the oxygen saturated clusters(2n?5m) in our experimental condition. The reactivity of VmOn+ toward C2H4 is usually higher than that of hydrogen containing clusters, VmOnH2x+. Larger clusters show less reactivity than smaller ones. Most of the observed products are in the forms of VmOnC2H4+ and VmOnH2xC2H4+ due to direct association. C2H4 clustering products ((C2H4)n+, n=2-6) are also observed.
|Citation:||Wei-gang Wang, Zhe-chen Wang, Shi Yin, Sheng-gui He, Mao-fa Ge. Reaction of Cationic Vanadium Oxide Clusters with Ethylene in a Flow Tube Reactor[J]. Chinese Journal of Chemical Physics , 2007, 20(4): 412-418. doi: 10.1088/1674-0068/20/04/412-418|