Copyright (c) 2013 AJC
This work is licensed under a Creative Commons Attribution 4.0 International License.
Effect of Magnesium on Hydrogen Generation Performance of Al-Li Alloy
Corresponding Author(s) : Mei-Qiang Fan
Asian Journal of Chemistry,
Vol. 25 No. 2 (2013): Vol 25 Issue 2
Abstract
The effect of Mg metal on the hydrogen generation performance of Al-Li alloys was elaborated in the present study. The results showed that there existed conflicting effect with increasing Mg content. The grain size of Al-Li alloy was decreased and special surface area was increased therefore with increasing Mg metal, which stimulated Al hydrolysis. But higher Mg metal led to more Mg(OH)2 generation in the hydrolysis process, which covered on Al surface and worsened Al hydrolysis. Our results showed that the side effect of Mg(OH)2 was determine and the hydrogen generation rate of Al-Li alloys was controllable. The reactivity of Al-Li alloys can be regulated via changing Mg content. It could be explained that fcc Al(Mg) solid solution and new alloys such as Al2Mg and Mg2Al3 generated in the milling process facilitated uniform mixing of Al and Mg and resulted in more Mg(OH)2 covering Al surface. Therefore, the suitable addition of Mg could reduce the reactivity of Al-Li alloys and presented safe, high hydrogen generation density for micro fuel cell.
Keywords
Download Citation
Endnote/Zotero/Mendeley (RIS)BibTeX
- S.S. Martinez, W.L. Benites, A.A. Alvarez and P.J. Sebastian, Solar Energy Mater. Solar Cell, 88, 1 (2005).
- G. Principi, F. Agresti and A. Maddalena, Energy, 34, 2087 (2009).
- E.D. Wang, P.F. Shi, C.Y. Du and X.R. Wang, J. Power Sour., 181, 144 (2008).
- H. Luo, J. Liu and X.X. Pu, J. Am. Ceram. Soc., 94, 3976 (2011).
- M.Q. Fan, L.X. Sun and F. Xu, Int. J. Hydrogen Energy, 36, 9791 (2011).
- Z.W. Zhao, X.Y. Chen and M.M. Hao, Energy, 36, 2782 (2011).
- M. Liu, S. Zanna and H. Ardelean, Corros. Sci, 51, 1115 (2009).
References
S.S. Martinez, W.L. Benites, A.A. Alvarez and P.J. Sebastian, Solar Energy Mater. Solar Cell, 88, 1 (2005).
G. Principi, F. Agresti and A. Maddalena, Energy, 34, 2087 (2009).
E.D. Wang, P.F. Shi, C.Y. Du and X.R. Wang, J. Power Sour., 181, 144 (2008).
H. Luo, J. Liu and X.X. Pu, J. Am. Ceram. Soc., 94, 3976 (2011).
M.Q. Fan, L.X. Sun and F. Xu, Int. J. Hydrogen Energy, 36, 9791 (2011).
Z.W. Zhao, X.Y. Chen and M.M. Hao, Energy, 36, 2782 (2011).
M. Liu, S. Zanna and H. Ardelean, Corros. Sci, 51, 1115 (2009).