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Hydrogen generation from MgNdNiMg15 composites by hydrolysis reaction

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierLaboratoire de Chimie Physique des Matériaux [LCPM]
dc.contributor.authorALASMAR, Eliane
dc.contributor.authorAUBERT, Isabelle
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDURAND, A.
hal.structure.identifierLaboratoire de Chimie Physique des Matériaux [LCPM]
dc.contributor.authorNAKHL, Michel
hal.structure.identifierLaboratoire de Chimie Physique des Matériaux [LCPM]
dc.contributor.authorZAKHOUR, Mirvat
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorGAUDIN, Etienne
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorBOBET, Jean-Louis
dc.date.issued2019
dc.identifier.issn0360-3199
dc.description.abstractEnThe effects of the Mg content on the microstructure and hydrogen generation kinetics of MgNdNiMg15 composites by hydrolysis reaction in seawater (3.5 wt% NaCl) was investigated. The presence of NdNiMg15 in Mg matrix promotes galvanic corrosion. Thus, a galvanic coupling was observed between the NdNiMg15 phase (cathode) and the Mg phase (anode). An acceleration of the corrosion rate of Mg phase was observed due to this galvanic coupling. Electrochemical tests confirm that pure Mg has a corrosion rate in salt water up to 750 times lower than that of the Mg phase in the MgNdNiMg15 90% composite. The best hydrolysis performance (100% of the theoretical hydrogen generation yield in slightly more than 15 min) observed for MgNdNiMg15 90% composite, was explained by a combined effect of galvanic corrosion, intergranular corrosion and pitting corrosion.
dc.language.isoen
dc.publisherElsevier
dc.subject.enMagnesium
dc.subject.enHydrolysis
dc.subject.enMgNdNiMg15
dc.subject.enComposite
dc.subject.enGalvanic coupling
dc.subject.enCorrosion
dc.subject.enElectrochemical
dc.title.enHydrogen generation from MgNdNiMg15 composites by hydrolysis reaction
dc.typeArticle de revue
dc.identifier.doi10.1016/j.ijhydene.2018.10.233
dc.subject.halChimie/Matériaux
dc.subject.halChimie/Chimie inorganique
bordeaux.journalInternational Journal of Hydrogen Energy
bordeaux.page523-530
bordeaux.volume44
bordeaux.issue2
bordeaux.peerReviewedoui
hal.identifierhal-02007399
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02007399v1
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