Adsorptions of Ni8 cluster on the regular and defect sites of the MgO(001) surface

  • Sheng Guang Wang
  • , Yong Wang Li
  • , Haijun Jiao*
  • , Jia Xing Lu
  • , Ming Yuan He
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

The adsorption of Ni8 clusters on the anionic (Mg 25O240/+/2+, Fs0/+/2+) and cationic (Mg24O250/-/2-, Vs 0/-/2-) vacancies, as well as on the regular sites (Mg 25O25, Mg2+ and NiMg24O 25, Ni2+) of the MgO(001) surface has been investigated at the PW91/DND level of density functional theory. On the basis of the computed adsorption energies, the metal deposition has the decreasing order of Ni 8/Vs > Ni8/Vs- > Ni8/Vs2- > Ni8/Fs 2+ ≈ Ni8/ Ni2+ ≈ Ni8/F s+ ≈ Ni8/Mg2+ > Ni 8/Fs, > Ni8/O2-. Strong electron and charge transfers are found between Ni8 cluster and vacancies or regular sites. The electronic property of the vacancies has been analyzed.

Original languageEnglish
Pages (from-to)8359-8363
Number of pages5
JournalJournal of Physical Chemistry B
Volume108
Issue number24
DOIs
StatePublished - 17 Jun 2004

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