About: Catalytic effect of Ni, Mg2Ni and Mg2NiH4 upon hydrogen desorption from MgH2

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About: Catalytic effect of Ni, Mg2Ni and Mg2NiH4 upon hydrogen desorption from MgH2 Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	MgH2 is a perspective hydrogen storage material whose main advantage is a relatively high hydrogen storage capacity (theoretically, 7.6 wt.% H2). This compound, however, shows poor hydrogen desorption kinetics. Much effort was devoted in the past to finding possible ways of enhancing hydrogen desorption rate from MgH2, which would bring this material closer to technical applications. One possible way is catalysis of hydrogen desorption. This paper investigates separate catalytic effects of Ni, Mg2Ni and Mg2NiH4 on the hydrogen desorption characteristics of MgH2. It was observed that the catalytic efficiency of Mg2NiH4 was considerably higher than that of pure Ni and non-hydrated intermetallic Mg2Ni. The Mg2NiH4 phase has two low-temperature modifications below 508 K: un-twinned phase LT1 and micro-twinned phase LT2. LT1 was observed to have significantly higher catalytic efficiency than LT2. MgH2 is a perspective hydrogen storage material whose main advantage is a relatively high hydrogen storage capacity (theoretically, 7.6 wt.% H2). This compound, however, shows poor hydrogen desorption kinetics. Much effort was devoted in the past to finding possible ways of enhancing hydrogen desorption rate from MgH2, which would bring this material closer to technical applications. One possible way is catalysis of hydrogen desorption. This paper investigates separate catalytic effects of Ni, Mg2Ni and Mg2NiH4 on the hydrogen desorption characteristics of MgH2. It was observed that the catalytic efficiency of Mg2NiH4 was considerably higher than that of pure Ni and non-hydrated intermetallic Mg2Ni. The Mg2NiH4 phase has two low-temperature modifications below 508 K: un-twinned phase LT1 and micro-twinned phase LT2. LT1 was observed to have significantly higher catalytic efficiency than LT2. (en)
Title	Catalytic effect of Ni, Mg2Ni and Mg2NiH4 upon hydrogen desorption from MgH2 Catalytic effect of Ni, Mg2Ni and Mg2NiH4 upon hydrogen desorption from MgH2 (en)
skos:prefLabel	Catalytic effect of Ni, Mg2Ni and Mg2NiH4 upon hydrogen desorption from MgH2 Catalytic effect of Ni, Mg2Ni and Mg2NiH4 upon hydrogen desorption from MgH2 (en)
skos:notation	RIV/68081723:_____/11:00369588!RIV12-AV0-68081723
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA106/09/0814), P(GAP108/11/0148), Z(AV0Z20410507)
http://linked.open...iv/cisloPeriodika	21
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	David, Bohumil Čermák, Jiří
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyziky materiálů AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	189291
http://linked.open...ai/riv/idVysledku	RIV/68081723:_____/11:00369588
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	MgH2; Hydrogen storage; Hydrogen desorption; Catalysis (en)
http://linked.open.../riv/klicoveSlovo	Hydrogen storage Catalysis Hydrogen desorption MgH2
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[7FFD907A47E9]
http://linked.open...i/riv/nazevZdroje	International Journal of Hydrogen Energy
http://linked.open...in/vavai/riv/obor	JG
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Desorption kinetics of hydrogen in Mg2Ni-H intermetallic modified by chosen interstitials Carbon diffusion in extremely carbon-supersaturated ferrite and austenite alloys
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	36
http://linked.open...iv/tvurceVysledku	David, Bohumil Čermák, Jiří
http://linked.open...ain/vavai/riv/wos	000296208800030
http://linked.open...n/vavai/riv/zamer	Physical properties of advanced materials in relation to their microstructure and processing
issn	0360-3199
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.ijhydene.2011.07.133

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