Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 685, Issue -, Pages 639-646Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2016.05.346
Keywords
Hydrogen storage; Mg-based compound; Kinetics; Catalytic effect
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Funding
- National Natural Science Foundation of China [51271002, 51571001]
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The Mg2Cu alloy with nanostructured Mg2Ni and YH2/YH3 is synthesized by ball-milling of Mg10YNi + 4Cu (in mole ratio) powders at 4 MPa H-2 followed by sintering at 400 degrees C for 20 h under an argon pressure of 0.6 MPa. It is found that the kinetic properties of both the disproportionation reaction of Mg2Cu and its reverse reaction can be enhanced in comparison with those of undoped Mg2Cu. The improvement of hydrogen absorption/desorption kinetics is attributed to the nanocrystalline Mg2Ni and YH2/YH3 embedded in the Mg2Cu matrix. (C) 2016 Elsevier B.V. All rights reserved.
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