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Effect of carbons (G and CFs), TM (Ni, Fe and Al) and oxides (Nb2O5 and V2O5) on hydrogen generation from ball milled Mg-based hydrolysis reaction for fuel cell

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierLaboratoire de Chimie Physique des Matériaux [LCPM]
dc.contributor.authorAWAD, Abdel Salam
hal.structure.identifierLaboratoire de Chimie Physique des Matériaux [LCPM]
dc.contributor.authorEL-ASMAR, E.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierLaboratoire de Chimie Physique des Matériaux [LCPM]
dc.contributor.authorTAYEH, Toufic
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorMAUVY, Fabrice
hal.structure.identifierLaboratoire de Chimie Physique des Matériaux [LCPM]
dc.contributor.authorNAKHL, Michel
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorZAKHOUR, Mirvat
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorBOBET, Jean-Louis
dc.date.issued2016
dc.identifier.issn0360-5442
dc.description.abstractEnThis paper dedicated to investigation the effect of carbons (graphite and carbon fibers), transition metals (TM = Ni, Fe and Al) and oxides (Nb2O5 and V2O5) on Mg–H hydrolysis reaction in aqueous media (3.5 wt% NaCl). Mg – 10 wt% X (X = C, TM and oxides) mixtures were prepared by mechanical milling (1, 3 and 5 h). Mg – 10 wt% G mixtures show the best hydrolysis performance (95% of theoretical hydrogen generation yield in almost 3 min) in comparison to Mg – oxide and Mg – TM mixtures. In addition to the presence of micro-galvanic cells, particle size, MgH2 content, density defects, fractures and cracking have an important influence on the hydrolysis reaction. Synergetic effect of carbons and transition metals has been studied for Mg – 5 wt% G – 5 wt% Ni mixture. Activation energies were calculated using Avrami–Erofeev model. An activation energy of 14.34 kJ/mol was found for Mg/G/Ni mixture which demonstrates the best hydrolysis behavior (95% of theoretical hydrogen generation yield within 2 min). Hydrogen generated from Mg–H hydrolysis reaction was fed directly to a single Proton Exchange Membrane Fuel Cell (PEMFC). At 0.15 A, the cell voltage exhibited a stable value of approximately 0.52 V for roughly 35 min.
dc.language.isoen
dc.publisherElsevier
dc.subject.enHydrogen generation
dc.subject.enMg-based materials
dc.subject.enBall milling
dc.subject.enHydrolysis reaction
dc.subject.enSynergetic effect
dc.subject.enPEM fuel cell
dc.title.enEffect of carbons (G and CFs), TM (Ni, Fe and Al) and oxides (Nb2O5 and V2O5) on hydrogen generation from ball milled Mg-based hydrolysis reaction for fuel cell
dc.typeArticle de revue
dc.identifier.doi10.1016/j.energy.2015.12.004
dc.subject.halChimie/Matériaux
bordeaux.journalEnergy
bordeaux.page175-186
bordeaux.volume95
bordeaux.peerReviewedoui
hal.identifierhal-01269779
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01269779v1
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