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Título: | Hydrocarbons adsorption on metal trimesate MOFs: Inverse gas chromatography and immersion calorimetry studies |
Autor: | Gutiérrez, Inés; Díaz, Eva; Vega, Aurelio; Ordóñez, Salvador; Guerrero-Ruiz, Antonio CSIC ORCID; Castillejos-López, Eva CSIC ORCID; Rodríguez-Ramos, Inmaculada CSIC ORCID | Palabras clave: | Basolite Surface properties Adsorption properties Immersion calorimetry Metal-organic frameworks Inverse gas chromatography |
Fecha de publicación: | 20-feb-2015 | Editor: | Elsevier | Citación: | Thermochimica Acta 602: 36-42 (2015) | Resumen: | Two commercial metal-organic frameworks, Cu3(BTC)2 and Fe(BTC), have been selected to compare the adsorption parameters obtained on these materials by two different techniques: immersion calorimetry and inverse gas chromatography (IGC), in order to find a relationship between thermodynamic parameters obtained by so different techniques. From comparison between the enthalpy of adsorption obtained from IGC and the enthalpy of immersion, three molecules of the same number of carbon atoms have been selected: n-heptane, methylcyclohexane and toluene. Both by IGC and immersion calorimetry, the interaction is stronger in Fe(BTC), being the aromaticity of TOL determinant in the strength of the interaction. However, splitting of the enthalpy of adsorption into the dispersive and specific components allows to deduce that both parameters are more important on the Cu3(BTC)2, due to the higher available surface area in the case of the dispersive interaction; and for the specific interaction, due to the high potential of interaction into the micropores. | Versión del editor: | https://doi.org/10.1016/j.tca.2015.01.007 | URI: | http://hdl.handle.net/10261/189949 | DOI: | 10.1016/j.tca.2015.01.007 | ISSN: | 0040-6031 | E-ISSN: | 1872-762X |
Aparece en las colecciones: | (ICP) Artículos |
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