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INTERACTION OF WATER WITH POTASSIUM ON GRAPHITE - A HREELS STUDY
Chalmers University of Technology.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics.
Chalmers University of Technology.
1993 (English)In: Journal of Electron Spectroscopy and Related Phenomena, ISSN 0368-2048, E-ISSN 1873-2526, Vol. 64-5, 279-285 p.Article in journal (Refereed) Published
Abstract [en]

Water and coadsorbed water + potassium on the basal plane of graphite were studied with high resolution electron energy loss spectroscopy (HREELS) at 85 K and after stepwise annealing up to 500 K. Water adsorbs non-dissociatively on both clean and potassium precovered surface at 85 K. The vibration spectra, together with thermal desorption spectroscopy (TDS) reveal a series of reactions within the coadsorbed layer leading to the formation of KOH, KH, and KOx and volatile products. Eventually a precursor to CO2 formation, of yet unindentified composition and observed also in K + O-2 coadsorption studies on graphite, is observed at approximate to 27 meV.

Place, publisher, year, edition, pages
1993. Vol. 64-5, 279-285 p.
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URN: urn:nbn:se:uu:diva-235947DOI: 10.1016/0368-2048(93)80089-5ISI: A1993MQ54700036OAI: oai:DiVA.org:uu-235947DiVA: diva2:762472
Available from: 2014-11-11 Created: 2014-11-11 Last updated: 2017-12-05

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Österlund, Lars

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