Hamieh, T. New Physicochemical Methodology for the Determination of the Surface Thermodynamic Properties of Solid Particles. AppliedChem2023, 3, 229-255.
Hamieh, T. New Physicochemical Methodology for the Determination of the Surface Thermodynamic Properties of Solid Particles. AppliedChem 2023, 3, 229-255.
Hamieh, T. New Physicochemical Methodology for the Determination of the Surface Thermodynamic Properties of Solid Particles. AppliedChem2023, 3, 229-255.
Hamieh, T. New Physicochemical Methodology for the Determination of the Surface Thermodynamic Properties of Solid Particles. AppliedChem 2023, 3, 229-255.
Abstract
The study of the surface thermodynamic properties of solid materials is primordial for the determination of the dispersive surface energy, polar enthalpy of adsorption and Lewis’s acid base properties of solid particles. Inverse gas chromatography technique (IGC) at infinite dilution is the best surface technique for the determination of the surface physicochemical properties of materials. (1) Background: This paper was devoted to study the surface properties of solid materials such as alumina particles by using IGC technique. (2) Methods: Different methods and molecular models such as spherical, cylindrical, van der Waals, Redlich-Kwong, Kiselev and geometric models, were used to determine the London dispersive surface energy of solid surfaces. Hamieh model was also used and highlighted the thermal effect on the surface area of solvents. (3) Results: The variations of the dispersive surface energy and the free energy of adsorption were determined for alumina particles as a function of the temperature as well as their Lewis’s acid base constants. Alumina surfaces were proved to exhibit a strong Lewis amphoteric character three time more basic than acidic (4) Conclusions: The new methodology based on Hamieh model gave the more accurate results of the physicochemical properties of the particle surfaces.
Keywords
Dispersive surface energy; free energy of adsorption; enthalpy and entropy of adsoption; Lewis’s acid base parameters; Hamieh thermal model; work of adhesion.
Subject
Chemistry and Materials Science, Applied Chemistry
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
