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dc.contributor.authorBoesenberg, U.-
dc.contributor.authorKim, J. W.-
dc.contributor.authorGosslar, D.-
dc.contributor.authorEigen, N.-
dc.contributor.authorJensen, T. R.-
dc.contributor.authorvon Colbe, J. M. Bellosta-
dc.contributor.authorZhou, Y.-
dc.contributor.authorDahms, M.-
dc.contributor.authorKim, D. H.-
dc.contributor.authorGuenther, R.-
dc.contributor.authorCho, Y. W.-
dc.contributor.authorOh, K. H.-
dc.contributor.authorKlassen, T.-
dc.contributor.authorBormann, R.-
dc.contributor.authorDornheim, M.-
dc.date.accessioned2024-01-20T19:31:07Z-
dc.date.available2024-01-20T19:31:07Z-
dc.date.created2021-09-02-
dc.date.issued2010-05-
dc.identifier.issn1359-6454-
dc.identifier.urihttps://pubs.kist.re.kr/handle/201004/131495-
dc.description.abstractThe influence of additives on the reaction kinetics and microstructure refinement in LiBH4-MgH2 composites is investigated in detail. Indications of the rate-limiting processes during the reactions are obtained by comparison of the measured reaction kinetics with simulations with one specific rate-limiting process. The kinetics of the sorption reactions are derived from volumetric measurements as well as from in situ X-ray diffraction measurements. During desorption, the hydrogen is released at a constant rate, which is possibly correlated with the one-dimensional growth of MgB2 platelets. In contrast, the kinetic curves of the absorption reactions exhibit the typical shape of contracting-volume controlled kinetics. The microscopical interpretation of kinetic measurements are supported by transmission electron microscopy images confirming the formation of additive-nanostructures in the grain boundaries upon cycling. The present investigations underline the importance of the additives as nucleation substrates and the influence of microstructure on the reaction kinetics. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.-
dc.languageEnglish-
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD-
dc.subjectHYDROGEN STORAGE-
dc.subjectMETAL-HYDRIDES-
dc.subjectSTATE-
dc.subjectMECHANISMS-
dc.titleRole of additives in LiBH4-MgH2 reactive hydride composites for sorption kinetics-
dc.typeArticle-
dc.identifier.doi10.1016/j.actamat.2010.02.012-
dc.description.journalClass1-
dc.identifier.bibliographicCitationACTA MATERIALIA, v.58, no.9, pp.3381 - 3389-
dc.citation.titleACTA MATERIALIA-
dc.citation.volume58-
dc.citation.number9-
dc.citation.startPage3381-
dc.citation.endPage3389-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.identifier.wosid000277747400019-
dc.identifier.scopusid2-s2.0-77950078868-
dc.relation.journalWebOfScienceCategoryMaterials Science, Multidisciplinary-
dc.relation.journalWebOfScienceCategoryMetallurgy & Metallurgical Engineering-
dc.relation.journalResearchAreaMaterials Science-
dc.relation.journalResearchAreaMetallurgy & Metallurgical Engineering-
dc.type.docTypeArticle-
dc.subject.keywordPlusHYDROGEN STORAGE-
dc.subject.keywordPlusMETAL-HYDRIDES-
dc.subject.keywordPlusSTATE-
dc.subject.keywordPlusMECHANISMS-
dc.subject.keywordAuthorHydrogen storage-
dc.subject.keywordAuthorNanocomposites-
dc.subject.keywordAuthorHeterogeneous nucleation of phase transformations-
dc.subject.keywordAuthorPhase transformation kinetics-
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KIST Article > 2010
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