Analysis of the Micropore Structure of Various Microporous Materials from Nitrogen Adsorption at 77 K |
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Authors: | A. Gil |
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Affiliation: | (1) Unité de Catalyse et Chimie des Matériaux Divisés, Université catholique de Louvain, Place Croix du Sud 2/17, Louvain-la-Neuve, 1348, Belgium |
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Abstract: | The micropore structure of four microporous materials (two zeolites, ZSM-5 and Y-82; an activated carbon and an alumina pillared clay) and their binary physical mixtures (50-50 wt%) have been examined by nitrogen adsorption at 77 K. Various micropore sizes have been considered from the stages on the micropore filling mechanism in the microporous materials. The application of the Dubinin-Astakhov (DA) equation to characterize and obtain the adsorption potential distributions of the microporous materials is presented. |
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Keywords: | adsorption isotherms adsorption potential distributions micropore structure structural heterogeneity |
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