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Porous structure of polyarylamide-based activated carbon fibres
Auteur(s)
Editeur(s)
Centeno, Teresa A.
Fuertes, A. B.
Muñiz, J.
Date de parution
1996
In
Carbon, Elsevier, 1996/34/10/1201-1206
Résumé
Activated carbons were prepared from two polyarylamide fibres (Kevlar and Nomex) by carbonization and subsequent steam activation to 25 and 50% burn-off. The porous structure of the carbons has been investigated by physical adsorption of CH<sub>2</sub>Cl<sub>2</sub> and N<sub>2</sub>O at 293 K and immersion calorimetry into liquids of different molecular dimensions. <br> The activated fibres have good sorptive capacities and relatively narrow micropores. The materials resulting from activation at low degrees of burn-off could therefore be of great interest in gas separation, owing to their molecular-sieve properties. Compared to industrial activated carbons, the fibres are hydrophilic and have small external surface areas.
Autre version
http://dx.doi.org/10.1016/0008-6223(96)00088-7
Type de publication
Resource Types::text::journal::journal article
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