The growth of crystalline water films on Pt(111) is investigated using rare gas physisorption. The water monolayer wets Pt(111) at all temperatures investigated (20-155 K). At low temperatures (T = 120 K) where the water mobility is limited, additional water layers kinetically wet the monolayer surface. However, crystalline ice films grown at higher temperatures (T > 135 K) do not wet the water monolayer. These results are consistent with recent theory and experiments suggesting that the molecules in the water monolayer form a surface with no dangling OH bonds or lone pair electrons, giving rise to a hydrophobic water monolayer on Pt(111).
Revised: May 19, 2011 |
Published: October 14, 2005
Citation
Kimmel G.A., N.G. Petrik, Z. Dohnalek, and B.D. Kay. 2005.Crystalline Ice Growth on Pt(111): Observation of a Hydrophobic Water Monolayer.Physical Review Letters 95, no. 16:166102.PNNL-SA-45342.