Molecular structure of the H2O wetting layer on Pt(111)
作者： Sebastian Standop , Alex Redinger , Markus Morgenstern , Thomas Michely , Carsten Busse
DOI: 10.1103/PHYSREVB.82.161412
关键词: Wetting 、 Molecular Density 、 Wetting layer 、 Analytical chemistry 、 Atmospheric temperature range 、 Scanning tunneling microscope 、 Condensed matter physics 、 Desorption 、 Superstructure (condensed matter) 、 Diffraction 、 Materials science
摘要: The molecular structure of the wetting layer ice on Pt(111) is resolved using scanning tunneling microscopy (STM). Two structures observed previously by diffraction techniques are imaged for coverages at or close to completion layer. At 140K only a sqrt(37) x R25.3{\deg} superstructure can be established, while 130K also sqrt(39) R16.1{\deg} with slightly higher density formed. In temperature range under concern superstructures reversibly transform into each other slight changes in coverage through adsorption desorption. exhibit complex pattern molecules different geometries.
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