Abstract

A self-consistent calculation of the potential-energy surface for a molecule (${\mathrm{H}}_{2}$) on a metal surface [Mg(0001)] is presented. The following experimentally observable adsorption features are identified and interpreted: (i) an activation barrier for molecular adsorption, (ii) a mobile molecularly chemisorbed state ("precursor state"), (iii) an activation barrier for dissociation (${{E}_{a}}^{d}$), and (iv) a strong dependence of ${{E}_{a}}^{d}$ on the adsorption-site geometry.

Keywords

AdsorptionDissociation (chemistry)MoleculePhysical chemistryMaterials sciencePhysicsChemistryQuantum mechanics

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Publication Info

Year
1981
Type
article
Volume
46
Issue
4
Pages
257-260
Citations
231
Access
Closed

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Jens K. Nørskov, A. Houmøller, Peter Johansson et al. (1981). Adsorption and Dissociation of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">H</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>on Mg Surfaces. Physical Review Letters , 46 (4) , 257-260. https://doi.org/10.1103/physrevlett.46.257

Identifiers

DOI
10.1103/physrevlett.46.257