引用本文:
马晨生, 李海洋, 张晓光, 白吉玲, 王秀岩, 张桂秋, 王利, 何国钟, 楼南泉. 铜氧团簇负离子的产生[J]. 物理化学学报,
1996, 12(02): 185-189.
doi:
10.3866/PKU.WHXB19960220
Citation: Ma Chen-Sheng, Li Hai-Yang, Zhang Xiao-Guang, Bai Ji-Ling, Wang Xiu-Yan, Zhang Gui-Qiu, Wang Li, He Guo-Zhong, Lou Nan-Quan. Production of Copper Oxide Negative Cluster Ions[J]. Acta Physico-Chimica Sinica, 1996, 12(02): 185-189. doi: 10.3866/PKU.WHXB19960220
Citation: Ma Chen-Sheng, Li Hai-Yang, Zhang Xiao-Guang, Bai Ji-Ling, Wang Xiu-Yan, Zhang Gui-Qiu, Wang Li, He Guo-Zhong, Lou Nan-Quan. Production of Copper Oxide Negative Cluster Ions[J]. Acta Physico-Chimica Sinica, 1996, 12(02): 185-189. doi: 10.3866/PKU.WHXB19960220
English
Production of Copper Oxide Negative Cluster Ions
Abstract:
Copper oxide cluster ions CunOm n=1-22, m=1-12 are generated by 523 nm laser ablation of CuCO3 solid sample with Time of Flight Mass Spectrometer detection. By changing precursor, we get similar TOF MS from Cu(NO3)2 sample, but narrower mass distribution from CuO sample. We suggest that this is caused by collisionally stabilization. Small gas molecules CO2 and NO2, generated by laser ablation of CuCO3 and Cu(NO3)2, act as buffer gas in supersonic molecular beams, and they are helpful for the production of high mass clusters.
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Key words:
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Cluster
- / Laser ablation
- / Collsionally stabilization
- / Copper oxide
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