Data di Pubblicazione:
2007
Citazione:
Room temperature isosteric heat of dihydrogen adsorption on Cu(I) cations in zeolite ZSM-5 / P. A. Georgiev, A. Albinati, J. Eckert. - In: CHEMICAL PHYSICS LETTERS. - ISSN 0009-2614. - 449:1-3(2007 Nov), pp. 182-185.
Abstract:
The experimental isosteric heat, Q(st), for molecular hydrogen adsorption in a Cu-exchanged zeolite ZSM-5 was determined as a function of the hydrogen loading. Q(st) was found to vary in a stepwise manner between 73 +/- 5 and 39 +/- 4 kJ/mol H-2. This behaviour suggests the presence of different groups of adsorption sites, some of which have the appropriate thermodynamics necessary for an ambient conditions sorption based H-2 storage medium. Our data can be directly related to model calculations and inelastic neutron scattering spectra. From a thermodynamic point of view, they confirm the feasibility of hydrogen storage applications based on molecular chemisorption of hydrogen.
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
P. A. Georgiev, A. Albinati, J. Eckert
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