UM
Hydrogen storage properties of Y-Mg-Cu-H nanocomposite obtained by hydrogen-induced decomposition of YMg4Cu intermetallic
Jiang, Xiaojing; Fu, Kai; Xiao, Rui; Wu, Yong; Sun, Bingxue; Shao, Huaiyu; Wu, Xiuqi; Zheng, Jie; Li, Xingguo
2018-06-30
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
Volume751Pages:176-182
AbstractA new YMg4Cu intermetallic with orthorhombic TbMg4Cu type structure was prepared by induction melting and subsequent heating treatment. Hydrogenation of YMg4Cu resulted in phase segregation into the YH3-MgH2-MgCu2 nanocomposite. The phase components, microstructure and hydrogen ab/desorption kinetics of Y-Mg-Cu-H nanocomposite were carefully investigated. The in-situ formed Y-MgCu-H nanocomposite can absorbed 3.0 wt% hydrogen at 523 K, absorbed 2.6 wt% hydrogen at 373 K under 4 MPa H-2 and desorbed 3.0 wt% hydrogen under an initial hydrogen pressure of 0.001 bar at 550 K. The PCT curves show two plateaus corresponding to the formation of Mg and Mg2Cu, and the hydrogen desorption activation energy is -72.3 and -76.8 kj/mol H-2, respectively. Furthermore, the in-situ formed Mg/MgH2, Mg2Cu/MgH2+MgCu2 matrix and YH2/YH3 nanocatalysts is crucial to maintain the high effective capacity of this nanocomposites. (C) 2018 Elsevier B.V. All rights reserved.
KeywordIntermetallic Hydrogen storage Kinetics Nanocomposite
DOI10.1016/j.jallcom.2018.04.121
URLView the original
Indexed BySCI
Language英语
WOS Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000432670000022
PublisherELSEVIER SCIENCE SA
The Source to ArticleWOS
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Cited Times [WOS]:6   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Recommended Citation
GB/T 7714
Jiang, Xiaojing,Fu, Kai,Xiao, Rui,et al. Hydrogen storage properties of Y-Mg-Cu-H nanocomposite obtained by hydrogen-induced decomposition of YMg4Cu intermetallic[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2018,751:176-182.
APA Jiang, Xiaojing.,Fu, Kai.,Xiao, Rui.,Wu, Yong.,Sun, Bingxue.,...&Li, Xingguo.(2018).Hydrogen storage properties of Y-Mg-Cu-H nanocomposite obtained by hydrogen-induced decomposition of YMg4Cu intermetallic.JOURNAL OF ALLOYS AND COMPOUNDS,751,176-182.
MLA Jiang, Xiaojing,et al."Hydrogen storage properties of Y-Mg-Cu-H nanocomposite obtained by hydrogen-induced decomposition of YMg4Cu intermetallic".JOURNAL OF ALLOYS AND COMPOUNDS 751(2018):176-182.
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