article·2005-01-01

Electrochemical Behavior of Oxygen/Superoxide Ion Couple in 1-Butyl-1-methylpyrrolidinium Bis(trifluoromethylsulfonyl)imide Room-Temperature Molten Salt

Yasushi Katayama, Kaori Sekiguchi, Masaki Yamagata, Takashi Miura

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Abstract

The electrochemical behavior of oxygen /superoxide ion couple was investigated with the aid of the ultramicroelectrode technique in 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide (BMPTFSI) room-temperature molten salt (ionic liquid). The diffusion coefficient of was at . The activation energy of the diffusion process of was estimated to be from the temperature dependence of the diffusion coefficient. The solubility of in BMPTFSI was at and decreased with an increase in temperature. The diffusion coefficient of was at . The formal potential of couple was vs ferrocene/ferrocenium.
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Research context

OpenAlex topics: Ionic liquids properties and applications · Conducting polymers and applications · Molten salt chemistry and electrochemical processes

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