Relation between immersion enthalpy of activated carbon monoliths and textural parameters

Quimica nova

Vargas, Diana P.¹  Gutiérrez, Liliana Giraldo¹  Moreno, Juan Carlos² 

[1] Universidad Nacional de Colombia, Bogotá, Colombia;Universidad de los Andes, Bogotá, Colombia

关键词: carbon monolith;    chemistry activation;    immersion enthalpy.;   

DOI  :  10.1590/S0100-40422011000200005

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

In this study,Disc and honeycomb-shaped activated carbon monoliths were obtained using asa precursor coconut shell, without the use of any binder. Textural characterizationwas performed by adsorption of N2 at 77 K and immersion calorimetryinto benzene. The experimental results showed that the activation with zincchloride produces a wide development of micropores, yielding micropore volumesbetween 0,38 and 0,79 cm3 g-1, apparent BET surface areabetween 725 and 1523 m2 g-1 and immersion enthalpy between73,5 and 164,2 J g-1.Were made comparisons between textural parametersand energy characteristics.

【 授权许可】

CC BY