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The theory of adsorption when each particle occupies more than one site

Published online by Cambridge University Press:  24 October 2008

J. K. Roberts
J. K. Roberts
Affiliation:
Trinity College
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Extract

In order to be able to identify the type to which an adsorbed film belongs from its experimentally determined behaviour, it is necessary to know theoretically how various simple and general types, which are likely to occur frequently, behave. Films formed on a rectangular solid lattice with another atom at the centre of each rectangle are considered. Each adsorbed molecule is assumed sufficiently large to exclude the possibility of adsorption on the four neighbouring sites and, owing to the rectangular shape of the lattice, reacts appreciably with two and not with four neighbouring adsorbed molecules. The statistics and kinetics of the film are considered. It is shown that the variation of heat of adsorption with fraction of sites occupied is quite different from that of other types of film which have so far been treated. Immobile films of the same type are briefly discussed.

Type
Research Article
Information
Mathematical Proceedings of the Cambridge Philosophical Society , Volume 34 , Issue 4 , October 1938 , pp. 577 - 586
Copyright
Copyright © Cambridge Philosophical Society 1938

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References

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† Roberts, , Proc. Roy. Soc. A, 152 (1935), 455 and 161 (1937), 149Google Scholar; Proc. Cambridge Phil. Soc. 34 (1938), 399Google Scholar; Wang, , Proc. Roy. Soc. A, 161 (1937), 127CrossRefGoogle Scholar; Proc. Cambridge Phil. Soc. 34 (1938), 238.Google Scholar

* Peierls, , Proc. Cambridge Phil. Soc. 32 (1936), 471.CrossRefGoogle Scholar

* Compare the deduction of equation (4) in Roberts, , Proc. Roy. Soc. A, 161 (1937), 141.CrossRefGoogle Scholar

* See Wang, , Proc. Roy. Soc. A, 161 (1937), 131.CrossRefGoogle Scholar

* Roberts, , Proc. Cambridge Phil. Soc. 34 (1938), 402.Google Scholar

† See Wang, , Proc. Roy. Soc. A, 161 (1937), 131.CrossRefGoogle Scholar

* Peierls, , Proc. Cambridge Phil. Soc. 32 (1936), 471.CrossRefGoogle Scholar

* Roberts, , Proc. Roy. Soc. A, 152 (1935), 473.Google Scholar

† Roberts, , Proc. Cambridge Phil. Soc. 34 (1938), 406.Google Scholar