期刊
IONICS
卷 29, 期 5, 页码 1923-1933出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s11581-023-04931-1
关键词
Magnesium; Cerium; Corrosion products; Precipitated phase; Chunk effect
The effects of solute cerium (Ce) on the electrochemical performance of magnesium (Mg) alloy anodes were investigated. The addition of 0.174 wt.% Ce enhanced the corrosion resistance of Mg in seawater by forming a compact corrosion products layer and reducing the grain size of Mg alloys. Mg-Ce alloys were used in Mg-seawater batteries, achieving a high energy density and anode efficiency compared to pure Mg.
The effects of solute cerium (Ce) on the electrochemical performance of magnesium (Mg) alloy anodes are investigated by the weight loss test, electrochemical measurement, and surface analysis methods. It is found that the added Ce with the content of 0.174 wt.% enhances the corrosion resistance of Mg in seawater through forming the compact corrosion products layer and reducing the grain size of Mg alloys. Moreover, Mg-Ce alloys were applied in Mg-seawater batteries, which obtained a high energy density of 627.53 mWh g(-1) with an anode efficiency of 43.49%, around 11 times than that of casting pure Mg.
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