textural characterization and energetics of porous solids by adsorption calorimetry结构特征和能量的多孔固体吸附量热法.pdf

Energies 2011, 4, 928-947; doi:10.3390/en4060928 OPEN ACCESS energies ISSN 1996-1073 /journal/energies Article Textural Characterization and Energetics of Porous Solids by Adsorption Calorimetry Vanessa Silenia Garcia-Cuello 1, Liliana Giraldo 1 and Juan C. Moreno-Pirajan 2,* 1 Department of Chemistry, Faculty of Science, National University of Colombia, Bogota, Colombia; E-Mails: vgarcia@.co (V.S.G.-C.); lgiraldogu@.co (L.G.) 2 Research Group on Porous Solids and Calorimetry, Department of Chemistry, Faculty of Science, University of the Andes, Bogota, Colombia * Author to whom correspondence should be addressed; E-Mail: jumoreno@.co; Tel.: +571-3394949; Fax: +571-3324366. Received: 20 February 2011; in revised form: 13 April 2011 / Accepted: 28 April 2011 / Published: 10 June 2011 Abstract: An adsorption microcalorimeter was designed and built in our laboratory and used for the determination of differential adsorption heats in different samples of porous solids: activated carbon granules, activated carbon pellets, an activated carbon monolith and a zeolite sample. This work shows the relationship between adsorption heat and the pore size of different porous solids using adsorption of NH , CO and N O. The result 3 2 shows that the thermal effect can be related with textural properties and superficial chemical groups of