Servicios Personalizados
Revista
Articulo
Indicadores
- Citado por SciELO
- Accesos
Links relacionados
- Similares en SciELO
Compartir
Revista de la Sociedad Química de México
versión impresa ISSN 0583-7693
Resumen
AGUILAR ARMENTA, Gelacio y DIAZ JIMENEZ, Lourdes. Estudio de la microporosidad de carbones activados por adsorción de benceno, ciclohexano y nitrógeno. Rev. Soc. Quím. Méx [online]. 2000, vol.44, n.4, pp.257-265. ISSN 0583-7693.
The results of the porosity study of three samples of commercial activated carbons, from adsorption isotherms of benzene (295 K) and N2 (75.5 K), using a high volumetric system, which was made of Pyrex glass, are presented. Special care was taken in the measurement of the isotherms in the range of low relative pressures (10−6) in order to characterize the microporosity of these carbons by different approaches: Dubinin-Radushkevich (D-R), α-plots, and Plavnick. 60% of the adsorbed benzene corresponds to irreversible adsorption, which can only be desorbed at T > 373 K in a high vacuum. It was established that the three samples are basically microporous, with a strongly pronounced structural heterogeneity.
Palabras llave : activated carbons; micropore; adsorption; benzene; and nitrogen.