کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
189190 | 459676 | 2011 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Discharge behavior of Mg–4 wt%Ga–2 wt%Hg alloy as anode for seawater activated battery Discharge behavior of Mg–4 wt%Ga–2 wt%Hg alloy as anode for seawater activated battery](/preview/png/189190.png)
Magnesium–gallium–mercury alloy is one of the new developed anode materials for seawater activated batteries. The potentiodynamic polarization, galvanostatic discharge and electrochemical impedance spectroscopy of Mg–4%Ga–2%Hg alloy in seawater are studied and compared with commercial AZ31 and AP65 alloys in this study. The results show that Mg–4%Ga–2%Hg alloy exhibits different discharge behaviors in as-cast, homogenizing, rolling and annealing conditions. The annealing Mg–4%Ga–2%Hg sheet obtains the most negative corrosion potentials in different current densities. And the Mg–4%Ga–2%Hg alloy provides more negative corrosion potentials than AZ31 and AP65 alloys. EIS studies reveal that the Mg–Ga–Hg alloy/seawater interfacial process is determined by an activation-controlled reaction. The Mg3Hg and Mg21Ga5Hg3 phases improve the electrochemical properties of Mg–4%Ga–2%Hg alloy. The assembled prototype battery with Mg–4%Ga–2%Hg alloy as anode and CuCl as cathodes exhibits a satisfactory discharge performance because of the advantages in discharge characterizations and microstructure of the Mg–4%Ga–2%Hg alloy.
► Produced the Mg–Ga–Hg alloy anode and researched its microstructures in different conditions.
► Researched the electrochemical discharged behavior of Mg–Ga–Hg alloy in different conditions.
► Compared the electrochemical properties of Mg–Ga–Hg alloy with AZ31 and AP65 alloys.
► Assembled the prototype battery with Mg–Ga–Hg anode and studied its electrochemical properties.
Journal: Electrochimica Acta - Volume 56, Issue 24, 1 October 2011, Pages 8224–8231