On the thermodynamic modeling of the isosteric heat of adsorption and comparison with experiments

A. Chakraborty, B. B. Saha, S. Koyama, K. C. Ng*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

92 Scopus citations

Abstract

A theoretical framework for the estimation of the isosteric heat of adsorption between an adsorbate (vapor) and an adsorbent (solid) is proposed based on the thermodynamic requirements of chemical equilibrium, Maxwell relations, and the entropy of the adsorbed phase. The derived equation for the isosteric heat of adsorption is verified against three sets of judiciously selected adsorbent+adsorbate data that are found in the literature and the predictions are found to agree within the experimental uncertainties of the reported data.

Original languageEnglish (US)
Article number171901
JournalApplied Physics Letters
Volume89
Issue number17
DOIs
StatePublished - 2006
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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