Determination of the fractal dimension of activated carbons: Two alternative methods

Determination of the fractal dimension of activated carbons: Two alternative methods

The fractal dimension of three samples of activated carbon has been determined according to two different experimental methods. The first method is based on the vaporization of gas species from the sample into a CO 2 flow up to a constant temperature of 573 K, and the adsorption of CO 2 from the CO...

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Veröffentlicht in:Applied surface science 2006-06, Vol.252 (17), p.6102-6105
Hauptverfasser: Cuerda-Correa, E.M., Díaz-Díez, M.A., Macías-García, A., Gañán-Gómez, J.
Format: Artikel
Sprache:eng
Schlagworte:
Activated carbon
Condensed matter: structure, mechanical and thermal properties
Disordered solids
Exact sciences and technology
Fractal dimension
Fractals
macroscopic aggregates (including diffusion-limited aggregates)
Physics
Powders, porous materials
Structure of solids and liquids
crystallography
Thermogravimetry
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Zusammenfassung:The fractal dimension of three samples of activated carbon has been determined according to two different experimental methods. The first method is based on the vaporization of gas species from the sample into a CO 2 flow up to a constant temperature of 573 K, and the adsorption of CO 2 from the CO 2 flow onto the surface of the sample under cooling. The second method is based on the application of the equation proposed by Frankel, Halsey and Hill. The degree of concordance between both methods is excellent.
ISSN:0169-4332
1873-5584
DOI:10.1016/j.apsusc.2005.11.012