Electrode kinetics of ferrocenium/ferrocene in some amide-based room-temperature ionic liquids

Naoki Tachikawa; Yasushi Katayama; Takashi Miura

doi:10.1149/1.3213542

Electrode kinetics of ferrocenium/ferrocene in some amide-based room-temperature ionic liquids

Naoki Tachikawa, Yasushi Katayama, Takashi Miura

Department of Applied Chemistry

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

33 Citations (Scopus)

Abstract

The electrode kinetics of ferrocenium/ferrocene ([Fe (Cp)₂] ⁺ /Fe (Cp)₂) was investigated in some room-temperature ionic liquids based on bis(trifluoromethylsulfonyl)amide. The diffusion coefficients of Fe (Cp)₂ were inversely proportional to the viscosity of the ionic liquids. The diffusion coefficients of [Fe (Cp) ₂] ⁺ were smaller than those of Fe (Cp)₂ probably because of the coulombic interaction between charged species and the ionic liquids. The apparent heterogeneous rate constants of [Fe (Cp)₂] ⁺ /Fe (Cp)₂ in the ionic liquids were smaller than those in organic solvents. The heterogeneous rate constants correlate with the viscosity of the electrolytes probably due to the slow dynamics of the ions composing the ionic liquids.

Original language	English
Pages (from-to)	F39-F41
Journal	Electrochemical and Solid-State Letters
Volume	12
Issue number	11
DOIs	https://doi.org/10.1149/1.3213542
Publication status	Published - 2009 Sep 18

ASJC Scopus subject areas

Chemical Engineering(all)
Materials Science(all)
Physical and Theoretical Chemistry
Electrochemistry
Electrical and Electronic Engineering

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abstract = "The electrode kinetics of ferrocenium/ferrocene ([Fe (Cp)2] + /Fe (Cp)2) was investigated in some room-temperature ionic liquids based on bis(trifluoromethylsulfonyl)amide. The diffusion coefficients of Fe (Cp)2 were inversely proportional to the viscosity of the ionic liquids. The diffusion coefficients of [Fe (Cp) 2] + were smaller than those of Fe (Cp)2 probably because of the coulombic interaction between charged species and the ionic liquids. The apparent heterogeneous rate constants of [Fe (Cp)2] + /Fe (Cp)2 in the ionic liquids were smaller than those in organic solvents. The heterogeneous rate constants correlate with the viscosity of the electrolytes probably due to the slow dynamics of the ions composing the ionic liquids.",

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Electrode kinetics of ferrocenium/ferrocene in some amide-based room-temperature ionic liquids

Abstract

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