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Title (Primary) Some mistakes and misinterpretations in the analysis of thermodynamic adsorption data
Author Salvestrini, S.; Ambrosone, L.; Kopinke, F.-D.
Journal Journal of Molecular Liquids
Year 2022
Department TUCHEM
Volume 352
Page From art. 118762
Language englisch
Topic T7 Bioeconomy
Keywords Temkin isotherm; van’t Hoff equation; Standard Gibbs adsorption energy; Adsorption spontaneity; Dimensional consistency of equations; Isosteric heat of adsorption
Abstract In this work, we discuss some results and statements recently published in the scientific adsorption literature. In particular, we focus on the thermodynamic aspects of the adsorption process, including dimensional inconsistency of fitted parameters, Temkin isotherm assumptions, inaccurate calculation of Δand Δ, parameter determination without providing the errors of estimate, mismatch between selected isotherm models and isosteric heat of adsorption, misleading interpretation of the spontaneity of a process, and interchangeability of ΔG and ΔG°. A graphical method is proposed for assessing data reliability and applicability of the van’t Hoff equation.
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=25792
Salvestrini, S., Ambrosone, L., Kopinke, F.-D. (2022):
Some mistakes and misinterpretations in the analysis of thermodynamic adsorption data
J. Mol. Liq. 352 , art. 118762