The high corrosion-resistance of ultra-high purity Mg-Ge alloy and its discharge performance as anode for Mg-air battery

被引：42

作者：

Chen, Xingrui ^{[1
]}

Venezuela, Jeffrey ^{[1
]}

Dargusch, Matthew ^{[1
]}

机构：

[1] Univ Queensland, Queensland Ctr Adv Mat Proc & Mfg AMPAM, Sch Mech & Min Engn, Adv Engn Bldg,Qld 49,Staff House Rd, St Lucia, Qld 4072, Australia

来源：

ELECTROCHIMICA ACTA | 2023年 / 448卷

关键词：

Mg alloys; Corrosion; Mg-air battery; Anode material; Electrochemical properties; OXIDATION RESISTANCE; PURE MAGNESIUM; ELECTROCHEMICAL BEHAVIORS; HYDROGEN EVOLUTION; MICROSTRUCTURE; CA; ADDITIONS; STRENGTH; PHASES;

D O I：

10.1016/j.electacta.2023.142127

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

This study reports cast ultra-high-purity (UHP) Mg-Ge alloys that exhibited remarkably high corrosion resistance and good discharge performance as anodes for Mg-air batteries. The UHP Mg-0.5Ge had a corrosion rate of 0.15 mmy- 1 resistance is attributed to the low impurity content, the restricted HER, and the presence of a protective surface film. The energy density of Mg-0.5Ge is 37% higher than UHP Mg at 10 mA cm-2. The better discharge properties are ascribed to the more negative corrosion potential and suppressed NDE. , which is twice better than Mg's intrinsic corrosion rate of 0.3 mm y-1. The outstanding corrosion

引用

页数：15

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