Fundamental Material Properties of the 2LiBH4-MgH2 Reactive Hydride Composite for Hydrogen Storage: (II) Kinetic Properties
Julian Jepsen,
Chiara Milanese,
Julián Puszkiel,
Alessandro Girella,
Benedetto Schiavo,
Gustavo A. Lozano,
Giovanni Capurso,
José M. Bellosta von Colbe,
Amedeo Marini,
Stephan Kabelac,
Martin Dornheim,
Thomas Klassen
Affiliations
Julian Jepsen
Institute of Materials Research, Helmholtz-Zentrum Geesthacht, Max-Planck-Straße 1, 21502 Geesthacht, Germany
Chiara Milanese
Pavia H2 Lab, Department of Chemistry, Physical Chemistry Division, University of Pavia, Viale Taramelli 16, 27100 Pavia, Italy
Julián Puszkiel
Institute of Materials Research, Helmholtz-Zentrum Geesthacht, Max-Planck-Straße 1, 21502 Geesthacht, Germany
Alessandro Girella
Pavia H2 Lab, Department of Chemistry, Physical Chemistry Division, University of Pavia, Viale Taramelli 16, 27100 Pavia, Italy
Benedetto Schiavo
Dipartimento dell’Innovazione Industriale e Digitale (DIID)-Ingegneria Chimica Gestionale Informatica Meccanica, Università degli Studi di Palermo, viale delle Scienze, Ed. 6, 90128 Palermo, Italy, and Istituto per le Tecnologie Avanzate (ITA), SS 113 174, 91100 Trapani, Italy
Gustavo A. Lozano
Institute of Materials Research, Helmholtz-Zentrum Geesthacht, Max-Planck-Straße 1, 21502 Geesthacht, Germany
Giovanni Capurso
Institute of Materials Research, Helmholtz-Zentrum Geesthacht, Max-Planck-Straße 1, 21502 Geesthacht, Germany
José M. Bellosta von Colbe
Institute of Materials Research, Helmholtz-Zentrum Geesthacht, Max-Planck-Straße 1, 21502 Geesthacht, Germany
Amedeo Marini
Department of Physicochemistry of Materials, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Centro Atómico Bariloche, Av. Bustillo km 9500, R8402AGP S.C. de Bariloche, Argentina
Stephan Kabelac
Institute for Thermodynamics, Leibniz Universität Hannover, Callinstraße 36, 30167 Hannover, Germany
Martin Dornheim
Institute of Materials Research, Helmholtz-Zentrum Geesthacht, Max-Planck-Straße 1, 21502 Geesthacht, Germany
Thomas Klassen
Institute of Materials Research, Helmholtz-Zentrum Geesthacht, Max-Planck-Straße 1, 21502 Geesthacht, Germany
Reaction kinetic behaviour and cycling stability of the 2LiBH4–MgH2 reactive hydride composite (Li-RHC) are experimentally determined and analysed as a basis for the design and development of hydrogen storage tanks. In addition to the determination and discussion about the properties; different measurement methods are applied and compared. The activation energies for both hydrogenation and dehydrogenation are determined by the Kissinger method and via the fitting of solid-state reaction kinetic models to isothermal volumetric measurements. Furthermore, the hydrogen absorption–desorption cycling stability is assessed by titration measurements. Finally, the kinetic behaviour and the reversible hydrogen storage capacity of the Li-RHC are discussed.
