Wetting transition of water on graphite and other surfaces

S. M. Gatica, J. K. Johnson, X. C. Zhao, M. W. Cole

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

Abstract

A wetting transition occurs when the contact angle of a liquid drop on a surface changes from a nonzero value to zero. Such a transition has never been observed for water on any solid surface. This paper discusses the value of the temperajture T w at which the transition should occur for water on graphite. A simple model, previously used for nonpolar fluids, predicts the value of T w as a function of the well depth D of the adsorption potential. While D is not well known for the case of water/graphite, the model implies that T w is likely to fall in the range 350-500 K. Experimental search for this transition is warranted. Water-wetting transition temperatures on other surfaces are also discussed.

Original languageEnglish (US)
Pages (from-to)11704-11708
Number of pages5
JournalJournal of Physical Chemistry B
Volume108
Issue number31
DOIs
StatePublished - Aug 5 2004

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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