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Physical Adsorption by Homogeneous and Heterogeneous Solid Surfaces

  • Sydney Ross

Abstract

Molecules adsorbed by a substrate may be held firmly at certain spots by strong chemical forces, or even by physical forces that, although comparatively weaker, are yet sufficiently greater than the desorption force endowed on the molecule by its thermal energy. Molecules that answer this description are said to be localized. Should the thermal energy be sufficiently great to counteract localization, yet not sufficiently great to cause complete desorption, the adsorbed molecules may be able to glide along the surface, overcoming small energy barriers to surface diffusion as they move from spot to spot. Molecules corresponding to this description are said to be mobile.

Keywords

Adsorption Isotherm Carbon Black Physical Adsorption Adsorptive Energy Isosteric Heat 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press 1966

Authors and Affiliations

  • Sydney Ross
    • 1
  1. 1.Rensselaer Polytechnic InstituteTroyUSA

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