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Material properties and empirical rate equations for hydrogen sorption reactions in 2 LiNH2-1.1 MgH2-0.1 LiBH4-3 wt.% ZrCoH3

Bürger, Inga and Hu, Jianjiang and Vitillo, Jenny G. and Kalantzopoulos, Georgios N. and Deledda, Stefano and Fichtner, Maximilian and Baricco, Marcello and Linder, Marc (2014) Material properties and empirical rate equations for hydrogen sorption reactions in 2 LiNH2-1.1 MgH2-0.1 LiBH4-3 wt.% ZrCoH3. International Journal of Hydrogen Energy, 39, pp. 8283-8292. Elsevier. doi: 10.1016/j.ijhydene.2014.02.120. ISSN 0360-3199.

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Official URL: http://dx.doi.org/10.1016/j.ijhydene.2014.02.120


2 LiNH2-1.1 MgH2-0.1 LiBH4-3 wt.% ZrCoH3 is a solid state hydrogen storage material with a hydrogen storage capacity of up to 5.3 wt.%. As the material shows sufficiently high desorption rates at temperatures below 200 °C, it is used for a prototype solid state hydrogen storage tank with a hydrogencapacity of 2kWhel that is coupled to a high temperature proton exchange membrane fuel cell. In order to design an appropriate prototype reactor, model equations for the rate of hydrogen sorption reactions are required. Therefore in the present study, several material properties, like bulk density and thermodynamic data, are measured. Furthermore, isothermal absorption and desorption experiments are performed in a temperature and pressure range that is in the focus of the coupling system. Using experimental data, two-step model equations have been fitted for the hydrogen absorption and desorption reactions. These empirical model equations are able to capture the experimentally measured reaction rates and can be used for model validation of the design simulations.

Item URL in elib:https://elib.dlr.de/88738/
Document Type:Article
Title:Material properties and empirical rate equations for hydrogen sorption reactions in 2 LiNH2-1.1 MgH2-0.1 LiBH4-3 wt.% ZrCoH3
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Bürger, Ingainga.buerger (at) dlr.deUNSPECIFIED
Hu, JianjiangKIT Karlsruhe, Institut für NanotechnologieUNSPECIFIED
Vitillo, Jenny G.University of TurinUNSPECIFIED
Kalantzopoulos, Georgios N.Institute for Energy Technology, Kjeller, NorwayUNSPECIFIED
Deledda, StefanoInstitute for Energy Technology, Kjeller, NorwayUNSPECIFIED
Fichtner, Maximilianm.fichtner (at) kit.eduUNSPECIFIED
Baricco, MarcelloUniversity of TurinUNSPECIFIED
Linder, Marcmarc.linder (at) dlr.deUNSPECIFIED
Date:3 April 2014
Journal or Publication Title:International Journal of Hydrogen Energy
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1016/j.ijhydene.2014.02.120
Page Range:pp. 8283-8292
Keywords:Li-Mg-N-H hydride Reaction rate Model equations Hydrogen storage
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Terrestrial Vehicles (old)
DLR - Research area:Transport
DLR - Program:V BF - Bodengebundene Fahrzeuge
DLR - Research theme (Project):V - Project Fahrzeugenergiesysteme III (old)
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Thermal Process Technology
Deposited By: Bürger, Inga
Deposited On:15 May 2014 13:07
Last Modified:15 May 2014 13:07

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