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Electrode Reactions of Copper Species in a Bis(fluorosulfonyl)amide Ionic Liquid (Supporting Information)

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posted on 2024-02-20, 06:29 authored by Nobuyuki SERIZAWA, Takumi HISADA, Yasushi KATAYAMA

The electrode reactions of copper species were investigated in an amide-type ionic liquid, 1-butyl-1-methylpyrrolidinium bis(fluorosulfonyl) amide (BMPFSA). The anodic current assignable to the dissolution of Cu to form monovalent Cu(I) complex was observed at −0.42 V vs. Ag|Ag(I). A pair of anodic and cathodic current peaks attributable to Cu(II)/Cu(I) was observed at 0.5 V, suggesting that a 4 V class redox flow battery combined with a Li metal anode is expected using the redox reaction of Cu(II)/Cu(I) in BMPFSA as the cathode reaction. The electrodeposition of Cu and the quasi-reversible redox reaction of Cu(II)/Cu(I) were affected by the electrode materials.

Funding

Japan Society for the Promotion of Science

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Corresponding author email address

serizawa@applc.keio.ac.jp

Copyright

© 2024 The Author(s).

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