Numerical Method for Analysis of Surface Heterogeneity in a Case of Finite Diversity of Adsorption Sites

Numerical Method for Analysis of Surface Heterogeneity in a Case of Finite Diversity of Adsorption Sites

A new algorithm is suggested for the calculation of energies and fractions of adsorption sites of different kinds from adsorption isotherms. The method is recommended for the investigation of crystalline surfaces when the number of distinguishable adsorption sites is not too large (≃1−5). The algori...

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Veröffentlicht in:Langmuir 1996-07, Vol.12 (15), p.3630-3642
Hauptverfasser: Mamleev, Vadim Sh, Bekturov, Esen A
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Sprache:eng
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Chemistry
Exact sciences and technology
General and physical chemistry
General, apparatus
Surface physical chemistry
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container_title Langmuir
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creator Mamleev, Vadim Sh
Bekturov, Esen A
description A new algorithm is suggested for the calculation of energies and fractions of adsorption sites of different kinds from adsorption isotherms. The method is recommended for the investigation of crystalline surfaces when the number of distinguishable adsorption sites is not too large (≃1−5). The algorithm was applied in the treatment of the adsorption isotherm of nitrogen on the surface of maximally hydroxylated silica at 78 K. The procedure, which allows one to calculate the isosteric heat of adsorption with a correction for effects of multilayer adsorption, is used for calculation of the energies of adsorption.
doi_str_mv 10.1021/la950181w
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subjects Chemistry
Exact sciences and technology
General and physical chemistry
General, apparatus
Surface physical chemistry
title Numerical Method for Analysis of Surface Heterogeneity in a Case of Finite Diversity of Adsorption Sites
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