Dipped adcluster model for chemisorptions and catalytic reactions on a metal surface: Image force correction and applications to Pd-O2 adclusters

Hiroshi Nakatsuji, Hiromi Nakai, Yoshifumi Fukunishi

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

Electrostatic term in the dipped adcluster model proposed previously is estimated by the method of image force. This is superior to the previous one which overestimates the electrostatic correction. The refined method is applied to the Pd-O2 adcluster dipped onto a free electron bath of the solid metal, the same system as reported previously. In addition to the highest spin coupling, the paired spin coupling is also applied. The former leads to a one-electron transfer and the latter a partial number (0.25) of electron transfer from a bulk metal into an adcluster. The geometry and the vibrational frequencies of the admolecule are not much affected by the electrostatic term, though the heat of adsorption is.

Original languageEnglish
Pages (from-to)640-647
Number of pages8
JournalThe Journal of Chemical Physics
Volume95
Issue number1
DOIs
Publication statusPublished - 1991 Jan 1

ASJC Scopus subject areas

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

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