INFAP 20938
INSTITUTO DE FISICA APLICADA "DR. JORGE ANDRES ZGRABLICH"
Unidad Ejecutora - UE
artículos
Título:
A new microcalorimeter of adsorption for the determination of differential enthalpies
Autor/es:
V. GARCIA-CUELLO, J.C. MORENO-PIRAJÁN, L. GIRALDO-GUTIÉRREZ, K. SAPAG AND G. ZGRABLICH
Revista:
MICROPOROUS AND MESOPOROUS MATERIALS
Editorial:
Elsevier
Referencias:
Lugar: Amsterdam; Año: 2009 vol. 120 p. 239 - 245
ISSN:
1387-1811
Resumen:
An adsorption microcalorimeter for the determination of the differential heat of adsorption is designedand built, and some of the results are presented here. For this purpose, a Calvet heat-conducting microcalorimeter is developed and is connected to a gas volumetric unit built in stainless steel to record adsorption isotherms. The microcalorimeter is electrically calibrated to establish its sensitivity and reproducibility, obtaining K = 154.34 ± 0.23WV1 and, chemically, it is examined with a THAMHCL system, obtaining Df = 30.49 ± 0.05 kJ mol1.The adsorption microcalorimeter is used here to obtain adsorption isotherms and the corresponding differentials heats, using as reference solid, a zeolite ZSM-5 type.K = 154.34 ± 0.23WV1 and, chemically, it is examined with a THAMHCL system, obtaining Df = 30.49 ± 0.05 kJ mol1.The adsorption microcalorimeter is used here to obtain adsorption isotherms and the corresponding differentials heats, using as reference solid, a zeolite ZSM-5 type.
