UM
Effect of LaH3-TiH2 composite additive on the hydrogen storage properties of Mg2Ni alloys
Zhao X.1; Han S.1; Zhu X.1; Liu B.1; Chen X.1; Liu Y.1; Wang R.2
2013
Source PublicationJournal of Alloys and Compounds
ISSN09258388
Volume581Pages:270-274
AbstractA novel LaH-TiH composite additive was prepared by ball milling LaH and TiH at a 1:1 weight ratio. Kinetic measurements on the hydrogenation reaction indicated that the LaH -TiH composite additive could significantly improve the hydrogen absorption properties of MgNi. In comparison with that of a pure MgNi alloy and a composite material combining MgNi + 10 wt.% LaH, the hydrogen storage capacity of the Mg2Ni + 10 wt.% (LaH-TiH) composite was 0.251 wt.% and 0.559 wt.% higher at 423 K within 100 s, respectively. Moreover, the composite additive revealed an excellent effect on ameliorating the thermodynamic properties of the Mg2Ni hydride. The decomposition onset temperature of the Mg- Ni + 10 wt.% (LaH-TiH) composite hydride was 17 and 13 K lower than that of the pure MgNiH and MgNi + 10 wt.% TiH composite, respectively. X-ray diffraction (XRD) results indicated that the LaH in the LaH-TiH composite additive were converted to LaH by the catalytic effect of TiH during the hydrogenation cycles and that the process enhanced the kinetic properties of hydrogen storage for Mg Ni alloy. © 2013 Elsevier B.V. All rights reserved.
KeywordHydrogen storage Kinetic properties Mechanical alloying Microstructure
DOI10.1016/j.jallcom.2013.05.053
URLView the original
Language英語
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Cited Times [WOS]:7   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.Yanshan University
2.Nordion Inc.
3.Henan Polytechnic University
Recommended Citation
GB/T 7714
Zhao X.,Han S.,Zhu X.,et al. Effect of LaH3-TiH2 composite additive on the hydrogen storage properties of Mg2Ni alloys[J]. Journal of Alloys and Compounds,2013,581:270-274.
APA Zhao X..,Han S..,Zhu X..,Liu B..,Chen X..,...&Wang R..(2013).Effect of LaH3-TiH2 composite additive on the hydrogen storage properties of Mg2Ni alloys.Journal of Alloys and Compounds,581,270-274.
MLA Zhao X.,et al."Effect of LaH3-TiH2 composite additive on the hydrogen storage properties of Mg2Ni alloys".Journal of Alloys and Compounds 581(2013):270-274.
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