Preprint
Article

The Effect of Temperature on London Dispersive Properties of H-β-Zeolite / Rhodium Catalysts Using New 2D-Chromatographic Models

Altmetrics

Downloads

6

Views

5

Comments

0

This version is not peer-reviewed

Submitted:

17 November 2024

Posted:

18 November 2024

You are already at the latest version

Alerts
Abstract
A new methodology on the determination of the surface properties of solid surfaces was recently proposed. Our new approach consisted in the accurate quantification of the London dispersive surface energy of materials using the two-dimensional inverse gas chromatography technique at infinite dilution. the notion of the net retention volume of adsorbed molecules The Hamieh thermal model proving the temperature effect on the surface area of organic molecules adsorbed on H--zeolite / rhodium catalysts at different rhodium percentages, was used to determine the accurate values of the London dispersive surface energy of solid surfaces at different temperatures. Whereas, the new method allowing a precise evaluation of dispersive adhesion work, dispersive surface enthalpy and entropy of adsorption of n-alkanes adsorbed on the catalysts. In this paper, the London dispersive surface energy and adhesion work of H--zeolite supported rhodium catalysts using the free energy of adsorbed molecules obtained from the two-dimensional inverse gas chromatography technique at infinite dilution. It was proved that the London dispersive surface energy depended on the temperature and the rhodium coefficient while the dispersive adhesion work of n-alkanes adsorbed on H--zeolite/rhodium catalysts was function of the temperature, rhodium percentage, and the carbon atom number of n-alkanes.
Keywords: 
Subject: Chemistry and Materials Science  -   Materials Science and Technology
Copyright: This open access article is published under a Creative Commons CC BY 4.0 license, which permit the free download, distribution, and reuse, provided that the author and preprint are cited in any reuse.
Prerpints.org logo

Preprints.org is a free preprint server supported by MDPI in Basel, Switzerland.

Subscribe

© 2024 MDPI (Basel, Switzerland) unless otherwise stated