Interaction of reactive ions with Pt(100). II. Dissociative scattering of molecular ions near the threshold energy region
- 1 May 1990
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 92 (9) , 5560-5568
- https://doi.org/10.1063/1.458489
Abstract
Dissociative scattering of N+2, CO+, and CO+2 ions from Pt(100) has been studied at low energies. For dissociated N+ emergence, the threshold of incident kinetic energy was found to be 40 eV. The threshold of dissociated CO+ emergence in the CO+2 incidence was clearly observed at 25 eV. The threshold of dissociated C+ emergence in the CO+ incidence was observed at 70 eV. Correlation between the dissociation energy of a free molecule and the threshold of incident kinetic energy is clearly discernible. The angular distributions show that the dissociation product appears at larger scattering angles than that for the parent molecular ions scattered nondissociatively. These experimental results are consistent with the model that dissociation is due to translational-rovibrational energy transfer above the dissociation limit at the impulse collision with the surface.Keywords
This publication has 46 references indexed in Scilit:
- Classical trajectory treatment of diatomic molecules reacting with solid surfaces: a study of mass effectsChemical Physics, 1986
- A study of light-heavy mass type molecules reacting with a solid surfaceChemical Physics Letters, 1985
- Gas—surface interactions and dynamics; Thermal energy atomic and molecular beam studiesSurface Science Reports, 1984
- Neutralization of Fast Molecular Ionsandat SurfacesPhysical Review Letters, 1984
- Reactive (dissociative) diatom–solid surface collision: A quantum mechanical approachThe Journal of Chemical Physics, 1984
- Time-of-flight measurements of light molecular ions scattered at grazing incidence from a Ni(111) surfaceNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1984
- The features of molecular ion dissociation for ion reflection from a copper single-crystal surfaceJournal of Physics B: Atomic and Molecular Physics, 1983
- Directional effects of the molecular ion reflection from a crystal surfaceSurface Science, 1982
- Scattering of molecular and atomic hydrogen ions from single-crystal surfacesPhysical Review B, 1979
- Backscattering of keV molecular hydrogen ions from Au surfacesApplied Physics Letters, 1975