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Mg Corrosion-Recent Progress
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DOI：10.3390/cmd3040031.png)
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摘要
En 中文
Recent progress is reviewed. Recent developments include: (i) accumulation of evidence that electrochemical measurements of the Mg corrosion rate often do not agree with the steady state Mg corrosion rate as measured by weight loss; (ii) low Fe tolerance limits are caused by heat treatment of nominally high-purity Mg and the presence of Si, (iii) the intrinsic Mg corrosion rate is 0.3 mm/y in a chloride solution as measured by weight loss, (iv) there are many Mg alloys with corrosion rates between 0.3 and 1.0 mm/y, (v) there are few Mg alloys with corrosion rates less than 0.3 mm/y, (vi) experimental evidence contradicts the enhanced catalytic activity mechanism of Mg corrosion, (vii) experiments support the uni-positive Mg+ mechanism, (viii) new compelling experimental evidence supporting the uni-positive Mg+ corrosion mechanism has been provided by electrochemical impedance spectroscopy (EIS), and (ix) the uni-positive Mg+ corrosion mechanism provides new insights for understanding the performance of Mg-air batteries and for the development of better Mg anodes.
Keyword:
Mg corrosion
anodic hydrogen
intrinsic Mg corrosion rate
uni-positive Mg+ corrosion mechanism
enhanced catalytic Mg corrosion mechanism
apparent Mg valence
Mg-air battery
Mg anode efficiency
期刊
C
IF:
2.4
论文数:
47
被引数:
494
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