Characterizing site energy distributions through the estimation of pressure derivatives of isotherms

Prasad, S. D. ; Doraiswamy, L. K. (1984) Characterizing site energy distributions through the estimation of pressure derivatives of isotherms Chemical Physics Letters, 104 (4). pp. 315-319. ISSN 0009-2614

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/000926...

Related URL: http://dx.doi.org/10.1016/0009-2614(84)80071-8

Abstract

Representations for the pressure derivatives of the mean surface coverage squared are suggested in terms of incomplete gamma functions for three distributions, with the Jovanovic local isotherm. These pressure derivatives display qualitatively different patterns of behavior with finite and infinite limits of the heats of adsorption; also, they reflect the nature of the site energy distribution.

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