論文

査読有り
2017年12月

Adsorption Forms of NO on Rh-n(+) (n=6-16) Revealed by Infrared Multiple Photon Dissociation Spectroscopy

JOURNAL OF PHYSICAL CHEMISTRY C
  • Toshiaki Nagata
  • ,
  • Kohei Koyama
  • ,
  • Satoshi Kudoh
  • ,
  • Ken Miyajima
  • ,
  • Joost M. Bakker
  • ,
  • Fumitaka Mafune

121
49
開始ページ
27417
終了ページ
27426
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1021/acs.jpcc.7b08097
出版者・発行元
AMER CHEMICAL SOC

The adsorption of NO on cationic Rh clusters, Rh-n(+) (n = 6-16), was studied by IRMPD spectroscopy using FELIX in combination with DFT calculations. The IRMPD spectra show that NO adsorbs molecularly on an on-top site of Rh-n(+) for all n studied, while for n = 7, 12, 13, and 14 evidence is found for a second, bridging, adsorption site. Indeed, the DFT calculations suggest that molecular NO adsorption on a bridge site is more stable than on an on-top site for n = 7. Part of the NO adsorbs dissociatively on Rh-n(+) , and the ratio of dissociative adsorption depends on the size, n. For Rh-n(+) (n = 6, 8, 9), the dissociative form of NO is predicted more favorable than the molecular form by the DFT calculations, but experimentally observed ratios of dissociative adsorption are less than predicted. The activation barrier between the molecular and dissociative adsorption is considered to hinder the NO dissociation.

Web of Science ® 被引用回数 : 4

リンク情報
DOI
https://doi.org/10.1021/acs.jpcc.7b08097
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000418393900020&DestApp=WOS_CPL