Relación entre la entalpía de inmersión de monolitos de carbon activado y parametros texturales

In this study, Disc and honeycomb-shaped activated carbon monoliths were obtained using as a precursor coconut shell, without the use of any binder. Textural characterization was performed by adsorption of N2 at 77 K and immersion calorimetry into benzene. The experimental results showed that the ac...

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Bibliographic Details
Published inQuímica Nova Vol. 34; no. 2; pp. 196 - 199
Main Authors Vargas, Diana P., Gutiérrez, Liliana Giraldo, Moreno, Juan Carlos
Format Journal Article
LanguageEnglish
Published Sociedade Brasileira de Química 2011
Subjects
carbon monolith
chemistry activation
immersion enthalpy
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Summary:In this study, Disc and honeycomb-shaped activated carbon monoliths were obtained using as a precursor coconut shell, without the use of any binder. Textural characterization was performed by adsorption of N2 at 77 K and immersion calorimetry into benzene. The experimental results showed that the activation with zinc chloride produces a wide development of micropores, yielding micropore volumes between 0,38 and 0,79 cm³ g-1, apparent BET surface area between 725 and 1523 m² g-1 and immersion enthalpy between 73,5 and 164,2 J g-1.Were made comparisons between textural parameters and energy characteristics.
ISSN:0100-4042
1678-7064
DOI:10.1590/S0100-40422011000200005