Use of argon adsorption isotherms for characterizing microporous activated carbons

Argon adsorption isotherms measured at 77.5 K on various microporous activated carbons were analysed to characterize the structural heterogeneities of these sorbents. It was found that the adsorption isotherms could be described by an isotherm equation associated with the gamma micropore-size distri...

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Bibliographic Details
Published in:Fuel (Guildford) 1990-04, Vol.69 (4), p.516-518
Main Authors: Jaroniec, M., Lu, X., Madey, R., Choma, J., Klinik, J.
Format: Article
Language:English
Subjects:
adsorption isotherm
Applied sciences
carbon
Energy
Exact sciences and technology
Fuel processing. Carbochemistry and petrochemistry
Fuels
microporosity
Solid fuel processing (coal, coke, brown coal, peat, wood, etc.)
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Summary:Argon adsorption isotherms measured at 77.5 K on various microporous activated carbons were analysed to characterize the structural heterogeneities of these sorbents. It was found that the adsorption isotherms could be described by an isotherm equation associated with the gamma micropore-size distribution. Parameters of this distribution function characterized the structural heterogeneity of the microporous activated carbon studied. Comparison of these parameters for various activated carbons showed the dependence of the microporosity of these carbons on the kind of raw material used and on the preparation conditions.
ISSN:0016-2361
1873-7153
DOI:10.1016/0016-2361(90)90325-K