Kinetic limitations in the Mg-Si-H system

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dc.contributor.authorPaskevicius, Men_AU
dc.contributor.authorSheppard, DAen_AU
dc.contributor.authorChaudhary, ALen_AU
dc.contributor.authorWebb, CJen_AU
dc.contributor.authorGray, EMen_AU
dc.contributor.authorTian, HYen_AU
dc.contributor.authorPeterson, VKen_AU
dc.contributor.authorBuckley, CEen_AU
dc.date.accessioned2011-12-19T22:53:01Zen_AU
dc.date.available2011-12-19T22:53:01Zen_AU
dc.date.issued2011-08-01en_AU
dc.date.statistics2011-12-20en_AU
dc.description.abstractMagnesium silicide (Mg(2)Si) has attracted interest as a hydrogen storage material due to favorable thermodynamics (Delta H(desorption) = 36 kJ/mol H(2)) for room temperature operation. To date, direct hydriding of Mg(2)Si under hydrogen gas to form MgH(2) and Si has only been attempted at low pressure and has been hindered by poor kinetics of absorption. In this paper we study the dehydrogenation reaction with in-situ neutron powder diffraction and present results of our attempts to hydrogenate Mg(2)Si under both hydrogen and deuterium gas up to temperatures of 350 degrees C and pressures of 1850 bar. Even under these extreme absorption conditions Mg(2)Si does not absorb any measureable quantity of hydrogen or deuterium. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltden_AU
dc.identifier.citationPaskevicius, M., Sheppard, D. A., Chaudhary, A. L., Webb, C. J., Gray, E. M., Tian, H. Y., Peterson, V. K., & Buckley, C. E. (2011). Kinetic limitations in the Mg-Si-H system. International Journal of Hydrogen Energy, 36(17), 10779-10786. doi:10.1016/j.ijhydene.2011.05.132en_AU
dc.identifier.govdoc3860en_AU
dc.identifier.issn0360-3199en_AU
dc.identifier.issue17en_AU
dc.identifier.journaltitleInternational Journal of Hydrogen Energyen_AU
dc.identifier.pagination10779-10786en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.ijhydene.2011.05.132en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/3953en_AU
dc.identifier.volume36en_AU
dc.language.isoenen_AU
dc.publisherPergamon-Elsevier Science LTDen_AU
dc.subjectHydrogen storageen_AU
dc.subjectKineticsen_AU
dc.subjectMagnesium silicidesen_AU
dc.subjectThermodynamicsen_AU
dc.subjectDehydrogenationen_AU
dc.subjectDeuteriumen_AU
dc.titleKinetic limitations in the Mg-Si-H systemen_AU
dc.typeJournal Articleen_AU
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