New Progress on London Dispersive Energy, Polar Surface Interactions, and Lewis's Acid-Base Properties of Solid Surfaces

The determination of the polar surface free energy, polar properties, and Lewis's acid base of solid materials is of capital importance in many industrial processes, such as adhesion, coatings, two-dimensional films, and adsorption phenomena. (1) Background: The physicochemical properties of many solid particles were characterized during the last forty years by using the retention time of injected well-known molecules into chromatographic columns containing the solid substrates to be characterized. The obtained net retention time of the solvents adsorbed on the solid, allowing the determination of the net retention volume directly correlated to the specific surface variables, dispersive, polar, and acid-base properties. (2) Methods: Many chromatographic methods were used to quantify the values of the different specific surface variables of the solids. However, one found a large deviation between the different results. In this paper, one proposed a new method based on the London dispersion equation that allowed the quantification of the polar free energy of adsorption, as well as the Lewis's acid-base constants of many solid surfaces. (3) Results: The newly applied method allowed us to obtain the polar enthalpy and entropy of adsorption of polar model organic molecules on several solid substrates, such as silica, alumina, MgO, ZnO, Zn, TiO2, and carbon fibers. (4) Conclusions: our new method based on the separation between the dispersive and polar free surface energy allowed us to better characterize the solid materials.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:29

Enthalten in:

Molecules (Basel, Switzerland) - 29(2024), 5 vom: 21. Feb.

Sprache:

Englisch

Beteiligte Personen:

Hamieh, Tayssir [VerfasserIn]

Links:

Volltext

Themen:

Acid–base surface energy
Enthalpic and entropic Lewis’s acid–base parameters
Journal Article
London dispersive energy
Polar energy of adsorption
Polar enthalpy and entropy of adsorption
Separation distance between particles

Anmerkungen:

Date Revised 15.03.2024

published: Electronic

Citation Status PubMed-not-MEDLINE

doi:

10.3390/molecules29050949

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM369641752