Mechanical activation of TiFe for hydrogen storage by cold rolling under inert atmosphere

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dc.contributor.authorVEGA, L.E.R.
dc.contributor.authorLEIVA, D.R.
dc.contributor.authorLEAL NETO, R.M.
dc.contributor.authorSILVA, W.B.
dc.contributor.authorSILVA, R.A.
dc.contributor.authorISHIKAWA, T.T.
dc.contributor.authorKIMINAMI, C.S.
dc.contributor.authorBOTTA, W.J.
dc.coverageInternacionalpt_BR
dc.date.accessioned2018-04-16T16:23:44Z
dc.date.available2018-04-16T16:23:44Z
dc.date.issued2018pt_BR
dc.description.abstractTiFe is a very interesting material for hydrogen storage in the solid state, due to its hydrogen capacity of 1.9 wt % and to the fact it can be absorb/desorb hydrogen at room temperature. However, the TiFe produced by casting does not absorb hydrogen, unless a procedure called activation is applied, which is based on a repetition of several thermal cycles. This study evaluates the effects of a mechanical activation route for the TiFe intermetallic compound, namely, cold rolling (CR) under inert atmosphere. Stoichiometric TiFe was prepared from elementary powders by arc melting. Ingot was grinded and then cold rolled for 20 and 40 passes under argon inside a glove box, with moisture and oxygen contents below 0.1 ppm. Cold rolled samples consisted of two parts: powder particles and thin cracked flakes. The results showed that mechanically activated samples by CR exhibited rapid absorption of hydrogen at room temperature, without using a thermal activation process. In general, the average storage capacity of hydrogen was 1.4 wt% H-2 for the first absorption, regardless of the number of passes for both flake and powder samples.pt_BR
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.description.sponsorshipIDFAPESP: 13/05987-8pt_BR
dc.format.extent2913-2918pt_BR
dc.identifier.citationVEGA, L.E.R.; LEIVA, D.R.; LEAL NETO, R.M.; SILVA, W.B.; SILVA, R.A.; ISHIKAWA, T.T.; KIMINAMI, C.S.; BOTTA, W.J. Mechanical activation of TiFe for hydrogen storage by cold rolling under inert atmosphere. <b>International Journal of Hydrogen Energy</b>, v. 43, n. 5, p. 2913-2918, 2018. DOI: <a href="https://dx.doi.org/10.1016/j.ijhydene.2017.12.054">10.1016/j.ijhydene.2017.12.054</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/28843.
dc.identifier.doi10.1016/j.ijhydene.2017.12.054pt_BR
dc.identifier.fasciculo5pt_BR
dc.identifier.issn0360-3199pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-5104-7392
dc.identifier.percentilfi69.82en
dc.identifier.percentilfiCiteScore88.00
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/28843
dc.identifier.vol43pt_BR
dc.relation.ispartofInternational Journal of Hydrogen Energypt_BR
dc.rightsopenAccesspt_BR
dc.subjectrolling
dc.subjectinert atmosphere
dc.subjecthydrogen storage
dc.subjecttitanium
dc.subjectiron
dc.subjectx-ray diffraction
dc.titleMechanical activation of TiFe for hydrogen storage by cold rolling under inert atmospherept_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorRICARDO MENDES LEAL NETO
ipen.codigoautor520
ipen.contributor.ipenauthorRICARDO MENDES LEAL NETO
ipen.date.recebimento18-04pt_BR
ipen.identifier.fi4.084pt_BR
ipen.identifier.fiCiteScore6.8
ipen.identifier.ipendoc24394pt_BR
ipen.identifier.iwosWoSpt_BR
ipen.identifier.ods7
ipen.range.fi3.000 - 4.499
ipen.range.percentilfi50.00 - 74.99
ipen.type.genreArtigo
relation.isAuthorOfPublicationb5e83d03-1f9c-4e57-8e02-628a903c95f8
relation.isAuthorOfPublication.latestForDiscoveryb5e83d03-1f9c-4e57-8e02-628a903c95f8
sigepi.autor.atividadeLEAL NETO, R.M.:520:730:Npt_BR
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