Hydriding kinetics of nano-phase composite hydrogen storage alloys prepared by mechanical alloying of Mg and MmNi 5-x (CoAlMn) x
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Pages (from-to) | 708-713 |
Journal / Publication | Journal of Alloys and Compounds |
Volume | 330-332 |
Publication status | Published - 17 Jan 2002 |
Conference
Title | Proceedings of the International Symposium on Metal-Hydrogen (MH 2000) |
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Place | Australia |
City | Noosa Heads, QLD |
Period | 1 - 6 October 2000 |
Link(s)
Abstract
Nano-phase composite hydrogen storage alloys were prepared by mechanical alloying of Mg and MmNi 5-x(CoAlMn) x. The hydrogen absorption kinetics of the nano-phase composite and melted MmNi 5-x(CoAlMn) x alloys were measured under isobaric conditions at different temperatures. The obtained hydrogen absorption kinetic curves were fitted using various rate equations to reveal the mechanism of the hydriding reaction process. The results showed that the hydriding reaction kinetics of the nano-phase composite and melted MmNi 5-x(CoAlMn) x were different. For the nano-phase composite, the hydriding reaction was in agreement with an auto-catalysis process. For the melted MmNi 5-x(CoAlMn) x, the hydride reaction was in agreement with a nucleation and growth process. The difference in hydriding kinetics of the two alloys is discussed based on the fitting results and the microstructural characteristics of the alloys. © 2002 Published by Elsevier Science B.V.
Research Area(s)
- Hydrogen absorption kinetics, Hydrogen storage alloys, Mechanical alloying, Nanocrystalline alloys
Citation Format(s)
Hydriding kinetics of nano-phase composite hydrogen storage alloys prepared by mechanical alloying of Mg and MmNi 5-x (CoAlMn) x. / Zhu, M; Gao, Y; Che, X. Z.; Yang, Y. Q.; Chung, C. Y.
In: Journal of Alloys and Compounds, Vol. 330-332, 17.01.2002, p. 708-713.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review