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The Effect of Mg Morphology on the Irregular Behavior of the Electrochemical Quartz Crystal Microbalance in Mg[N(CF3SO2)2]2/glyme Solutions (Supporting Information)

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posted on 10.05.2022, 01:25 by Fumihiro SAGANE, Akiya MURAMATSU

Mg plating/stripping reaction in Mg[N(CF3SO2)2]2/glyme based solution is studied by electrochemical quartz crystal microbalance method. During the cyclic voltammetry, the apparent mass decrease is observed in spite of the negative scan. The irregular response also appears in the Mg plating reaction with low constant current density apply. In the cases, Mg plating takes place locally and the size of each plating is relatively large of about 50 µm. The cross-sectional image of the plated Mg is tree-like structure, i.e., the large Mg crystal connects to the substrate with small contact area. From the results, we conclude that the specific Mg morphology causes the restoring force to the quartz substrate, resulting in the apparent mass decrease.

Funding

Fundamental study on electrochemical precipitation dissolution reaction of metallic Mg in organic electrolyte

Japan Society for the Promotion of Science

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Corresponding author email address

sagane.fumihiro@shizuoka.ac.jp