Comparison of two techniques for the surface analysis of alumina (Al2O3): Inverse Gas Chromatography at Finite Concentration (IGC-FC) and Dynamic Vapor Sorption (DVS)

Inverse Gas Chromatography and Dynamic Vapor Sorption are two methods of solid surface characterization isotherms. The exploitation of the adsorption and desorption isotherms leads to the calculation of specific surface area and surface energy of the divided solids under test. The powders used are γ and α alumina. The aim of this study is to compare the results obtained by these both techniques.

Graphical abstractInverse Gas Chromatography and Dynamic Vapor Sorption are two methods of solid surface characterization. The exploitation of the isotherms leads to the calculation of specific surface area and surface energy of the divided solids under test. The powders used are γ and α alumina. The aim of this study is to compare the results obtained by these both methods.Figure optionsDownload full-size imageDownload as PowerPoint slide