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Statistical theory of adsorption with long-range interaction

Published online by Cambridge University Press:  24 October 2008

J. S. Wang
J. S. Wang
Affiliation:
Fitzwilliam House
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Extract

The statistical theory of long-range interactions between adsorbed particles on a plane lattice is worked out approximately, by treating in detail the distribution of adsorbed particles among a few sites inside and on the boundary of a circular region, and regarding the distribution outside the circle as uniform and continuous with a density Kθ per unit area, where K is the number of lattice points per unit area and θ is the fraction of surface covered by adsorbed particles. The continuous distribution begins at a distance ρ from the centre of the circle, ρ being determined by the condition that the probability of occupation of a first shell site is equal to the probability θ of occupation of the central site. Using this method, general formulae for the adsorption isotherm and the heat of adsorption are obtained. Numerical applications for dipole interactions and for quadratic and hexagonal lattices are worked out in detail and the case in which the dipole moment varies with θ is discussed.

Type
Research Article
Information
Mathematical Proceedings of the Cambridge Philosophical Society , Volume 34 , Issue 2 , April 1938 , pp. 238 - 252
Copyright
Copyright © Cambridge Philosophical Society 1938

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References

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* Wang J. S., loc. cit.

* Wang J. S., loc. cit.

* Wang J. S., loc. cit.

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