Electrochemical behavior of tris(2,2'-bipyridine)cobalt complex in some ionic liquids

Yasushi Katayama; Shota Nakayama; Naoki Tachikawa; Kazuki Yoshii

doi:10.1149/2.0431708jes

Electrochemical behavior of tris(2,2'-bipyridine)cobalt complex in some ionic liquids

Yasushi Katayama, Shota Nakayama, Naoki Tachikawa, Kazuki Yoshii

Department of Applied Chemistry

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

The electrode reaction of tris(2,2'-bipyridine)cobalt complex, [Co(bpy)3]³+/2⁺, was investigated in 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)amide (BMPTFSA) and 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIBF4) ionic liquids. The diffusion of [Co(bpy)3]²⁺ and [Co(bpy)3]³⁺ was affected by the viscosity and the charge densities of the complexes and the anion of ionic liquid. The difference in the electron configurations of [Co(bpy)3]²⁺ and [Co(bpy)3]³⁺ is considered to cause the slow charge transfer and large reaction entropy change.

Original language	English
Pages (from-to)	H5286-H5291
Journal	Journal of the Electrochemical Society
Volume	164
Issue number	8
DOIs	https://doi.org/10.1149/2.0431708jes
Publication status	Published - 2017

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Renewable Energy, Sustainability and the Environment
Surfaces, Coatings and Films
Electrochemistry
Materials Chemistry

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title = "Electrochemical behavior of tris(2,2'-bipyridine)cobalt complex in some ionic liquids",

abstract = "The electrode reaction of tris(2,2'-bipyridine)cobalt complex, [Co(bpy)3]3+/2+, was investigated in 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)amide (BMPTFSA) and 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIBF4) ionic liquids. The diffusion of [Co(bpy)3]2+ and [Co(bpy)3]3+ was affected by the viscosity and the charge densities of the complexes and the anion of ionic liquid. The difference in the electron configurations of [Co(bpy)3]2+ and [Co(bpy)3]3+ is considered to cause the slow charge transfer and large reaction entropy change.",

author = "Yasushi Katayama and Shota Nakayama and Naoki Tachikawa and Kazuki Yoshii",

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T1 - Electrochemical behavior of tris(2,2'-bipyridine)cobalt complex in some ionic liquids

AU - Katayama, Yasushi

AU - Nakayama, Shota

AU - Tachikawa, Naoki

AU - Yoshii, Kazuki

PY - 2017

Y1 - 2017

N2 - The electrode reaction of tris(2,2'-bipyridine)cobalt complex, [Co(bpy)3]3+/2+, was investigated in 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)amide (BMPTFSA) and 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIBF4) ionic liquids. The diffusion of [Co(bpy)3]2+ and [Co(bpy)3]3+ was affected by the viscosity and the charge densities of the complexes and the anion of ionic liquid. The difference in the electron configurations of [Co(bpy)3]2+ and [Co(bpy)3]3+ is considered to cause the slow charge transfer and large reaction entropy change.

AB - The electrode reaction of tris(2,2'-bipyridine)cobalt complex, [Co(bpy)3]3+/2+, was investigated in 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)amide (BMPTFSA) and 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIBF4) ionic liquids. The diffusion of [Co(bpy)3]2+ and [Co(bpy)3]3+ was affected by the viscosity and the charge densities of the complexes and the anion of ionic liquid. The difference in the electron configurations of [Co(bpy)3]2+ and [Co(bpy)3]3+ is considered to cause the slow charge transfer and large reaction entropy change.

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Electrochemical behavior of tris(2,2'-bipyridine)cobalt complex in some ionic liquids

Abstract

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