Dissociative chemisorption on metal surface

Research output: Contribution to journalConference article

Abstract

Quantum dynamics studies of dissociative chemisorption of diatomic molecules on metal surfaces have revealed some interesting features that may have important potential applications. The probability for dissociative adsorption of a diatomic molecule on relatively smooth metal surfaces is highly dependent on rotational orientation of the diatomic molecule with the parallel (helicopter) mode being most favorable in overcoming the dissociation barrier. For dissociation of homonuclear diatoms under certain conditions, there is a selection rule which forbids the dissociation of the molecule at low collision energies. In the model simulation of dissociation probability with a time-dependent barrier, the dissociation probability is found to have a maximum as a function of the oscillating frequency of the barrier.

Original languageEnglish (US)
Pages (from-to)167-176
Number of pages10
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume3272
DOIs
StatePublished - Dec 1 1998
EventLaser Techniques for Surface Science III - San Jose, CA, United States
Duration: Jan 29 1998Jan 31 1998

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Keywords

  • Dissociative chemisorption
  • Fixed site
  • Fluctuation barrier
  • Selection rule
  • Stereodynamics

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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