Crystalline Ice Growth on Pt(111): Observation of a Hydrophobic Water Monolayer

Journal Article · Fri Oct 14 04:00:00 EDT 2005 · Physical Review Letters, 95(16):166102

DOI:https://doi.org/10.1103/PhysRevLett.95.166102· OSTI ID:860413

Kimmel, Greg A; Petrik, Nikolay G; Dohnalek, Zdenek; Kay, Bruce D

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).

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 860413
• Report Number(s): PNNL-SA-45342; 6495; 6500; KC0301020
• Journal Information: Physical Review Letters, 95(16):166102, Journal Name: Physical Review Letters, 95(16):166102 Journal Issue: 16 Vol. 95; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
CRYSTAL GROWTH
Environmental Molecular Sciences Laboratory
ICE
PLATINUM
SORPTION
SURFACE PROPERTIES
WETTABILITY