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The Effects of Additives on the Dehydrogenation of Amorphous Manganese Borohydride and Its Crystalline Form after Solvent Filtration/Extraction

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dc.contributor.authorVarin, Robert A.
dc.contributor.authorMattar, Deepak Kini
dc.contributor.authorPolanski, Marek
dc.contributor.authorShirani Bidabadi, Amirreza
dc.contributor.authorStobinski, Leszek
dc.date.accessioned2018-01-12T17:19:51Z
dc.date.available2018-01-12T17:19:51Z
dc.date.issued2017-10-30
dc.description.abstractA non-stoichiometric, amorphous a-Mn(BH4)(2x) hydride, accompanied by a NaCl-type salt, was mechanochemically synthesized from the additive-free mixture of (2NaBH4 + MnCl2), as well as from the mixtures containing the additives of ultrafine filamentary carbonyl nickel (Ni), graphene, and LiNH2. It is shown that both graphene and LiNH2 suppressed the release of B2H6 during thermal gas desorption, with the LiNH2 additive being the most effective suppressor of B2H6. During solvent filtration and extraction of additive-free, as well as additive-bearing, (Ni and graphene) samples from diethyl ether (Et2O), the amorphous a-Mn(BH4)(2x) hydride transformed into a crystalline c-Mn(BH4)2 hydride, exhibiting a microstructure containing nanosized crystallites (grains). In contrast, the LiNH2 additive most likely suppressed the formation of a crystalline c-Mn(BH4)2 hydride during solvent filtration/extraction. In a differential scanning calorimeter (DSC), the thermal decomposition peaks of both amorphous a-Mn(BH4)(2x) and crystalline c-Mn(BH4)2 were endothermic for the additive-free samples, as well as the samples with added graphene and Ni. The samples with LiNH2 exhibited an exothermic DSC decomposition peak.en
dc.description.sponsorshipNatural Sciences and Engineering Research Council (NSERC) of Canada Discovery grant to Robert A. Varinen
dc.identifier.urihttps://doi.org/10.3390/en10111741
dc.identifier.urihttp://hdl.handle.net/10012/12852
dc.language.isoenen
dc.publisherMultidisciplinary Digital Publishing Instituteen
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectamorphous a-Mn(BH4)2-typeen
dc.subjectball millingen
dc.subjectcrystalline c-Mn(BH4)2en
dc.subjectdiborane suppressionen
dc.subjectfilamentary Ni and LiNH2 additives on desorptionen
dc.subjectgas desorption behavioren
dc.subjectgrapheneen
dc.subjectmechanochemical activation synthesis of NaBH4 and MnCl2en
dc.subjectsolvent filtration/extractionen
dc.titleThe Effects of Additives on the Dehydrogenation of Amorphous Manganese Borohydride and Its Crystalline Form after Solvent Filtration/Extractionen
dc.typeArticleen
dcterms.bibliographicCitationVarin, R. A., Mattar, D. K., Polanski, M., Bidabadi, A. S., & Stobinski, L. (2017). The Effects of Additives on the Dehydrogenation of Amorphous Manganese Borohydride and Its Crystalline Form after Solvent Filtration/Extraction. Energies, 10(11), 1741. https://doi.org/10.3390/en10111741en
uws.contributor.affiliation1Faculty of Engineeringen
uws.contributor.affiliation2Mechanical and Mechatronics Engineeringen
uws.peerReviewStatusRevieweden
uws.scholarLevelFacultyen
uws.typeOfResourceTexten

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