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anode; electrochemical property; discharge behavior; corrosion; dissolution-deposition 1 Introduction Aluminum has a very negative thermodynamic potential of -2.4V (vs Hg/HgO) [1] in alkaline electrolyte... on the surface of aluminum alloy, which benefits the discharge of aluminum anode for battery system. This process is called dissolution- deposition mechanism [7]. Some previous investigations have reported......
(CV), constant current charge/discharge measurement of coin-type cells and scanning electron microscopy (SEM). The results show that the over-potential of dissolution-deposition for magnesium on AZ31...环伏安曲线 Fig.1 Cyclic voltammograms (CVs) of dissolution-deposition for magnesium on AZ31 alloy and commercial pure Mg electrodes 2.2 溶解-沉积循环性能 AZ31合金与工业纯镁电极前30次的溶解-沉积循环性能如图2所示.其中,对应于充电过程是......
of continuous netlike Si phase are dissolution-deposition and appendiculate deposition of Si. The form-mechanism of few fine pores in the microstructure was investigated. The interface of Sip/Al phases...; Connection among particles formed by mechanism of dissolution-deposition 图8 由不同形成机制形成的Si相连接 Fig.8 Microstructures of continuous Si phase formed by different mechanism 3 结论 1) Al液浸渗Si多......
is dissolution-deposition of the Hg and Ga atoms. Key words: Mg anode alloy; microstructure; electrochemical activity; corrosion resistance; electrochemical impedance spectroscopy 1 Introduction Magnesium... and pure liquid Hg. At the same time, the liquid Hg deposits on the electrode surface, strips the corrosion products of the surface and reacts with the α-Mg matrix, maintaining the activation dissolution......
the corrosion properties [11]. FENG et al [6] indicate that the activation mechanism of Mg-Hg-Ga alloy is dissolution-deposition of Hg and Ga atoms. There is no evidence that the corrosion behavior of the API2.0 alloy is associated with the dissolution- deposition mechanism. If the β-phase is present as a small fraction and is unevenly distributed, the β-phase serves mainly as a galvanic cathode......
rechargeable batteries is establishing reversible redox (deposition and dissolution) process of magnesium [13]. However, because magnesium is easily oxidized by water (moisture) and other protic-solvents to form passivation film, it is generally difficult to establish reversible process of electrochemical deposition and dissolution of magnesium, not only in aqueous but also in organic media. One......