A density functional study of CO2 adsorption on the (100) face of Cu(9,4,1) cluster model

Chak Tong AU*, M. D. Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

The adsorption modes of inert CO2 on the (100) face of Cu(9,4,1) cluster model have been studies by the Slater DFT code of the Amsterdam density functional (ADF) program. The side-on adsorption mode with near linear CO2 lying at the short bridge site has the highest binding energy of 26.31 kJ mol-1. The binding energies of CO2 in similar geometry on the cross bridge, hollow, and on-top sites vary from 19.66 to 21.8 kJ mol-1. The investigation also revealed that a number of CO2 bent modes with O-C-O angles equal to ≈ 150° can coordinate with the surface with binding energies ranging from 9.66 to 23.56 kJ mol-1. Further calculations indicated that to cause the CO2 molecule to bend to ≈ 150°, there is negative charge transferred from the copper cluster to the CO2 molecule.

Original languageEnglish
Pages (from-to)238-244
Number of pages7
JournalChemical Physics Letters
Volume278
Issue number4-6
DOIs
Publication statusPublished - 31 Oct 1997

Scopus Subject Areas

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

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