Textural characterization by nitrogen and carbon dioxide adsorption of nanoporous carbons from MCM-22 zeolite

DEICY BARRERA; JHONNY VILLARROEL ROCHA; JUAN TARA; ELENA BASALDELLA; KARIM SAPAG

Guarujá

Congreso; 10º Encontro Brasileiro sobre Adsorção; 2014

Nanoporous carbon template was obtained from the MCM-22 zeolite. The study about the porosity of these materials was carried out by means of nitrogen adsorption-desorption at 77 K. In addition, carbon dioxide adsorption at 273 K was carried out with the aim of obtaining complementary information about the narrow microporosity. Textural properties evaluation of these materials was made from the adsorption measurements of the mentioned gases, where one of them was the micropore volume obtained by different methods/models (Dubinin Radushkevich, αs-plot and Density Functional Density) in order to obtain a comprehensive study about the microporosity of these materials.