論文

査読有り
2013年2月

CO oxidation by copper cluster anions

European Physical Journal D
  • Shinichi Hirabayashi
  • ,
  • Yoshiyuki Kawazoe
  • ,
  • Masahiko Ichihashi

67
2
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1140/epjd/e2012-30493-5

Reactions of CO and O2 on size-selected copper cluster anions, Cu-n (n = 4-11), have been investigated at the collision energy of 0.2 eV by use of a guided ion beam-tandem mass spectrometer. Oxygen-adsorbed copper anions, CunO-2, in particular Cu5O-2 and Cu9O -2, show an evidence of the CO oxidation, that is, the formation of the monoxide CunO-. The density functional theory calculation reveals that the CO oxidation occurs more exothermically on Cu5O-2 and Cu9O- 2 than the other clusters. This can be explained by the relatively small dissociation energy of their Cu-O bonds. In addition, the calculations on Cu5O+2/- indicate that the CO oxidation proceeds via a low-energy pathway for the anion owing to the structural rearrangement of the copper cluster compared to the cation. © EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2013.

Web of Science ® 被引用回数 : 15

リンク情報
DOI
https://doi.org/10.1140/epjd/e2012-30493-5
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000316290300012&DestApp=WOS_CPL

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