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Dissociation of Physisorbed H_ $$2$$ through Low-Energy Electron Scattering Resonances
Karlstad University, Faculty of Technology and Science, Department of Physics and Electrical Engineering. (Materialfysik)ORCID iD: 0000-0003-1711-5595
2010 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 104, 216101-216105 p.Article in journal (Refereed) Published
Abstract [en]

Electron induced dissociation of physisorbed H2, HD, and D2 proceeds, as we observe in electron energy-loss measurements of the resulting atomic species, with a high quantum efficiency via the 2Σg+ core excited electron scattering resonances. We find that the predominant decay of the temporary H2- state to the neutral excited 3Σu+ parent state, which is intramolecularly antibonding, provides a sufficiently long-lived channel for dissociation to occur with high probability, even in the proximity of a metal surface.

Place, publisher, year, edition, pages
American Physical Society , 2010. Vol. 104, 216101-216105 p.
National Category
Physical Sciences
Research subject
Physics
Identifiers
URN: urn:nbn:se:kau:diva-16002DOI: 10.1103/PhysRevLett.104.216101ISI: 000278150100042PubMedID: 20867118OAI: oai:DiVA.org:kau-16002DiVA: diva2:573138
Available from: 2012-11-29 Created: 2012-11-29 Last updated: 2016-01-12Bibliographically approved

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