WATER-ADSORPTION ON GRAPHITE(0001)
1995 (English)In: Vacuum, ISSN 0042-207X, E-ISSN 1879-2715, Vol. 46, no 8-10, 1109-1112 p.Article in journal (Refereed) Published
Wafer adsorption on the clean graphite (0001) surface has been studied by high-resolution electron-energy-loss spectroscopy (HREELS) and temperature-programmed desorption (TPD). At 85 K H2O adsorbs non-dissociatively forming hydrogen-bonded aggregates. The structure and the growth mode of water clusters depend on the substrate temperature and the coverage. At all coverages, above a few per cent of a monolayer (ML), the desorption is characterized by zero-order kinetics, while the HREEL spectra reveal a threshold coverage approximately 1 ML when the average co-ordination of the H2O molecules changes. Isothermal measurements of the desorption rate and HREELS measurements at elevated temperatures suggest an irreversible phase transition from amorphous to crystalline ice at approximately 135 K.
Place, publisher, year, edition, pages
1995. Vol. 46, no 8-10, 1109-1112 p.
Other Physics Topics
IdentifiersURN: urn:nbn:se:uu:diva-235943DOI: 10.1016/0042-207X(95)00117-4ISI: A1995RR06300089OAI: oai:DiVA.org:uu-235943DiVA: diva2:762469
4th European Vacuum Conference (EVC-4)1st Swedish Vacuum Meeting (SVM-1), JUN 13-17, 1994, UPPSALA, SWEDEN