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Hydrogen sorption properties of the composite system 2NaBH4+MgH2
Citation Link: https://doi.org/10.15480/882.1055
Other Titles
Wasserstoffspeichereigenschaften des Kompositen-Systems 2NaBH4+MgH2
Publikationstyp
Doctoral Thesis
Date Issued
2011
Sprache
English
Author(s)
Advisor
Title Granting Institution
Technische Universität Hamburg
Place of Title Granting Institution
Hamburg
Examination Date
2011-12-09
TORE-DOI
The hydrogen storage properties of the system 2NaBH4+MgH2 are investigated as a model system for the class of Reactive Hydride Composites based on MgB2. The hydrogen absorption and desorption mechanisms are thoroughly elucidated. The effect of the applied hydrogen pressure and temperature on the hydrogen absorption mechanism is studied. For a given set of hydrogen pressure and temperature the dependence of the absorption reaction mechanism on the ratio of the starting reactants is also investigated. For the desorption reaction, considerable kinetic improvements are achieved by heating the as milled material in hydrogen pressure. The possibility to improve the desorption reaction by an innovative method of enhancing the effective contact area between reactants is also proposed. This method opens a new path for the kinetic enhancement of multi-compound reaction in the solid state.
Subjects
Hydrogen sorption properties
2NaBH4+MgH2
Reactive hydride composites
DDC Class
620:Engineering and allied operations
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