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@ARTICLE{Sumner:34873,
      author       = {Sumner, A. L. and Menke, E. J. and Dubrowski, Y. and
                      Newberg, J. T. and Penner, R. M. and Hemminger, C. and
                      Wingen, L. M. and Brauers, T. and Finlayson-Pitts, B. J.},
      title        = {{T}he nature of water on surfaces of laboratory systems and
                      implications for heterogeneous chemistry in the troposphere},
      journal      = {Physical Chemistry Chemical Physics},
      volume       = {6},
      issn         = {1463-9076},
      address      = {Cambridge},
      publisher    = {RSC Publ.},
      reportid     = {PreJuSER-34873},
      pages        = {604 - 613},
      year         = {2004},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {A number of heterogeneous reactions of atmospheric
                      importance occur in thin water films on surfaces in the
                      earth's boundary layer. It is therefore important to
                      understand the interaction of water with various materials,
                      both those used to study heterogeneous chemistry in
                      laboratory systems, as well as those found in the
                      atmosphere. We report here studies at 22 degreesC to
                      characterize the interaction of water with such materials as
                      a function of relative humidity from 0 - $100\%.$ The
                      surfaces studied include borosilicate glass, both untreated
                      and after cleaning by three different methods (water,
                      hydrogen peroxide and an argon plasma discharge), quartz,
                      FEP Teflon film, a self assembled monolayer of
                      n-octyltrichlorosilane (C8 SAM) on glass, halocarbon wax
                      coatings prepared by two different methods, and several
                      different types of Teflon coatings on solid substrates. Four
                      types of measurements covering the range from the
                      macroscopic level to the molecular scale were made: ( 1)
                      contact angle measurements of water droplets on these
                      surfaces to obtain macroscopic scale data on the
                      water-surface interaction, (2) atomic force microscopy
                      measurements to provide micron to sub-micron level data on
                      the surface topography, ( 3) transmission FTIR of the
                      surfaces in the presence of increasing water vapor
                      concentrations to probe the interaction with the surface at
                      a molecular level, and ( 4) X-ray photoelectron spectroscopy
                      measurements of the elemental surface composition of the
                      glass and quartz samples. Both borosilicate glass and the
                      halocarbon wax coatings adsorbed significantly more water
                      than the FEP Teflon film, which can be explained by a
                      combination of the chemical nature of the surfaces and their
                      physical topography. The C8 SAM, which is both hydrophobic
                      and has a low surface roughness, takes up little water. The
                      implications for the formation of thin water films on
                      various surfaces in contact with the atmosphere, including
                      building materials, soil, and vegetation, are discussed.},
      keywords     = {J (WoSType)},
      cin          = {ICG-II},
      ddc          = {540},
      cid          = {I:(DE-Juel1)VDB48},
      pnm          = {Chemie und Dynamik der Geo-Biosphäre},
      pid          = {G:(DE-Juel1)FUEK257},
      shelfmark    = {Chemistry, Physical / Physics, Atomic, Molecular $\&$
                      Chemical},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000188433300018},
      doi          = {10.1039/b308125g},
      url          = {https://juser.fz-juelich.de/record/34873},
}