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Mg deposition observed by in situ electrochemical Mg K-edge X-ray absorption spectroscopy
被引:58
作者:
Arthur, Timothy S.
[1
]
Glans, Per-Anders
[2
]
Matsui, Masaki
[1
]
Zhang, Ruigang
[1
]
Ma, Biwu
[3
]
Guo, Jinghua
[2
]
机构:
[1] Toyota Res Inst N Amer, Ann Arbor, MI 48105 USA
[2] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA
[3] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 USA
关键词:
In situ electrochemical/XAS;
Magnesium batteries;
Interface analysis;
Electrodeposition;
ELECTROLYTE-SOLUTIONS;
MAGNESIUM DEPOSITION;
STRUCTURAL-ANALYSIS;
BATTERIES;
D O I:
10.1016/j.elecom.2012.08.018
中图分类号:
O646 [电化学、电解、磁化学];
学科分类号:
081704 ;
摘要:
The electrochemical deposition of magnesium from [Mg-2(mu-Cl)(3)center dot 6(OC4H8)](+) has been monitored in situ with X-ray absorption spectroscopy. The viability of the cell design was confirmed by a reversible shift in the X-ray absorption near-edge spectroscopy (XANES) of the Mg K-edge. In situ electrochemical XANES revealed the presence of an interfacial Mg intermediate below the equilibrium Mg/Mg2+ potential. A new method has been established to directly observe the complex electrochemical reduction process from Mg electrolytes. (C) 2012 Elsevier B.V. All rights reserved.
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页码:43 / 46
页数:4
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