To the Mathematical Theory of the Temkin Adsorption Model

Michael Vigdorowitsch; Liudmila E. Tsygankova; Pavel N. Bernatsky

doi:10.6000/1929-5030.2020.09.02

Authors

Michael Vigdorowitsch Angara GmbH, In der Steele 2, 40599 DÃ¼sseldorf
Liudmila E. Tsygankova Derzhavin State University, Internatsyonalnaja Str. 33, 392000 Tambov
Pavel N. Bernatsky Derzhavin State University, Internatsyonalnaja Str. 33, 392000 Tambov

DOI:

https://doi.org/10.6000/1929-5030.2020.09.02

Keywords:

Adsorption heat, isotherm, Temkin, energetic heterogeneity.

Abstract

This study expands the mathematical theory of the Temkin adsorption model and demonstrates the way experimental data are to be additionally treated. A functional complement property of the Temkin isotherm has been studied as a particular case of the common theory of asymptotic complement. This property is shown to give rise to various analytical strategies to be employed for processing or interpretation of the experimental results, e.g. to perform mapping of data obtained in experiments onto a conjugated part of the true isotherm, to judge if presupposed energetic heterogeneity type of the surface really takes place, etc. Experimental data for adsorption of carbon monoxide on gold and of sodium oleate on steel with and without a magnetite coating have been extensively analysed.

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