INVESTIGADORES
SAPAG Manuel Karim
congresos y reuniones científicas
Título:
H2O sorption on nanoporous carbons
Autor/es:
CRISTIAN DIAZ; JHONNY VILLARROEL ROCHA; KARIM SAPAG
Lugar:
Fortaleza
Reunión:
Congreso; 13 Encontro Brasileiro de Adsorção; 2020
Institución organizadora:
Sociedad Brasilera de Adsorcion
Resumen:
The behavior of the H2O sorption was studied on three porous carbon materials, an activated carbon and two mesoporous carbons, previously synthesized and characterized in the Laboratorio de Sólidos Porosos. A prior N2 adsorption-desorption analysis at 77K was performed to the materials, from these data the textural properties of these materials were obtained. Then, H2O adsorption-desorption isotherms at 298K were performed to the materials, and correlating these results with their textural properties. The results showed that the micropore volume obtained with H2O is smaller than that obtained with N2 and may be due to the hydrophobic character of carbons. In addition, a clear hysteresis on isotherms in the microporous region could be observed for the three materials, most evident being the case in activated charcoal, which is fundamentally microporous.
