Mass spectrometric study of N2-adsorption on copper cluster cations formed by modulated pulsed power magnetron sputtering in aggregation cell

Keijiro Ohshimo, Isamu Mizuuchi, Kengo Akimoto, Keizo Tsukamoto, Masahide Tona, Hiroaki Yamamoto, Motoyoshi Nakano, Fuminori Misaizu

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

We have observed gas-phase reactions between N2 molecules and copper cluster cations, Cun+ (n = 2–17), formed by a modulated pulsed power magnetron sputtering cluster ion source. By introducing N2 gas effusively between the source and an acceleration region of a time-of-flight mass spectrometer in the vacuum chamber, N2-adsorbed copper cluster cations, CunN2+, were observed in mass spectra. The N2-adsorption reactivity of Cun+ was found to be relatively lower at n ≥ 10 than at the smaller n. The cluster-size dependence of N2-adsorption on Cun+ has a correlation with binding energies between Cun+ and N2 calculated by density functional theory.

Original languageEnglish
Pages (from-to)60-63
Number of pages4
JournalChemical Physics Letters
Volume682
DOIs
Publication statusPublished - 2017

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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