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Phase, microstructure and hydrogen storage properties of Mg-Ni materials synthesized from metal nanoparticles
Shao H.3; Chen C.2; Liu T.2; Li X.1
2014-04-04
Source PublicationNanotechnology
ISSN09574484 13616528
Volume25Issue:13
AbstractAfter Mg and Ni nanoparticles were fabricated by hydrogen plasma metal reaction, Mg-rich MgNi (75 < x < 90) materials were synthesized from these metal nanoparticles to study the synergistic effects for hydrogen storage in these samples to show both good kinetics and high capacity. These MgNi materials may absorb hydrogen with a capacity of around 3.3-5.1 wt% in 1 min at 573 K. The Mg Ni sample shows a hydrogen capacity of 6.1 wt%. The significant kinetic enhancement is thought to be due to the unique nanostructure from the special synthesis route, the catalytic effect of the MgNi nano phase, and the synergistic effects between the MgNi and Mg phases in the materials. An interesting phenomenon which has never been reported before was observed during pressure composition isotherm (PCT) measurements. One steep step in the absorption process and two obviously separated steps in the desorption process during PCT measurements of MgNi and MgNi samples were observed and a possible reason from the kinetic performance of the MgNi and Mg phases in absorption and desorption processes was explained. These MgNi materials synthesized from Mg and Ni nanoparticles show high capacity and good kinetics, which makes these materials very promising candidates for thermal storage or energy storage and utilization for renewable power. © 2014 IOP Publishing Ltd.
Keywordhydrogen storage kinetics magnesium alloys nanoparticle
DOI10.1088/0957-4484/25/13/135704
URLView the original
Language英語
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Cited Times [WOS]:11   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.College of Chemistry and Molecular Engineering, Peking University
2.Beihang University
3.Kyushu University
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GB/T 7714
Shao H.,Chen C.,Liu T.,et al. Phase, microstructure and hydrogen storage properties of Mg-Ni materials synthesized from metal nanoparticles[J]. Nanotechnology,2014,25(13).
APA Shao H.,Chen C.,Liu T.,&Li X..(2014).Phase, microstructure and hydrogen storage properties of Mg-Ni materials synthesized from metal nanoparticles.Nanotechnology,25(13).
MLA Shao H.,et al."Phase, microstructure and hydrogen storage properties of Mg-Ni materials synthesized from metal nanoparticles".Nanotechnology 25.13(2014).
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