Electrochemical Behavior of Silver in 1-Ethyl-3-methylimidazolium Tetrafluoroborate Molten Salt

Yasushi Katayama; Satomi Dan; Takashi Miura; Tomiya Kishi

doi:10.1149/1.1341243

Electrochemical Behavior of Silver in 1-Ethyl-3-methylimidazolium Tetrafluoroborate Molten Salt

Yasushi Katayama, Satomi Dan, Takashi Miura, Tomiya Kishi

Department of Applied Chemistry

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

103 Citations (Scopus)

Abstract

A room-temperature molten salt, 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIBF⁴) with adequate purity was obtained simply by the reaction of 1-ethyl-3-methylimidazolium chloride and tetrafluoroboric acid. Silver tetrafluoroborate dissolves up to ∼0.2 mol dm^-3 in EMIBF⁴ at room temperature. Electrochemical deposition and dissolution of silver on a platinum electrode were found possible in EMIBF⁴ containing AgBF⁴. The reduction of monovalent silver species is eleclrochemically irreversible, the rate constant being estimated to be 1 ± 10 ⁵ cms ¹, The diffusion coefficient of Ag(I) is calculated to be 6 ± 10^-7 cm² s^-1. suggesting that Ag(I) exists as a substantially bare cation (Ag^̇) in EMIBF₄.

Original language	English
Pages (from-to)	C102-C105
Journal	Journal of the Electrochemical Society
Volume	148
Issue number	2
DOIs	https://doi.org/10.1149/1.1341243
Publication status	Published - 2001 Dec 1

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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This output contributes to the following UN Sustainable Development Goals (SDGs)

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title = "Electrochemical Behavior of Silver in 1-Ethyl-3-methylimidazolium Tetrafluoroborate Molten Salt",

abstract = "A room-temperature molten salt, 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIBF4) with adequate purity was obtained simply by the reaction of 1-ethyl-3-methylimidazolium chloride and tetrafluoroboric acid. Silver tetrafluoroborate dissolves up to ∼0.2 mol dm-3 in EMIBF4 at room temperature. Electrochemical deposition and dissolution of silver on a platinum electrode were found possible in EMIBF4 containing AgBF4. The reduction of monovalent silver species is eleclrochemically irreversible, the rate constant being estimated to be 1 ± 10 5 cms 1, The diffusion coefficient of Ag(I) is calculated to be 6 ± 10-7 cm2 s-1. suggesting that Ag(I) exists as a substantially bare cation (A{\.g}) in EMIBF4.",

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T1 - Electrochemical Behavior of Silver in 1-Ethyl-3-methylimidazolium Tetrafluoroborate Molten Salt

AU - Katayama, Yasushi

AU - Dan, Satomi

AU - Miura, Takashi

AU - Kishi, Tomiya

PY - 2001/12/1

Y1 - 2001/12/1

N2 - A room-temperature molten salt, 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIBF4) with adequate purity was obtained simply by the reaction of 1-ethyl-3-methylimidazolium chloride and tetrafluoroboric acid. Silver tetrafluoroborate dissolves up to ∼0.2 mol dm-3 in EMIBF4 at room temperature. Electrochemical deposition and dissolution of silver on a platinum electrode were found possible in EMIBF4 containing AgBF4. The reduction of monovalent silver species is eleclrochemically irreversible, the rate constant being estimated to be 1 ± 10 5 cms 1, The diffusion coefficient of Ag(I) is calculated to be 6 ± 10-7 cm2 s-1. suggesting that Ag(I) exists as a substantially bare cation (Aġ) in EMIBF4.

AB - A room-temperature molten salt, 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIBF4) with adequate purity was obtained simply by the reaction of 1-ethyl-3-methylimidazolium chloride and tetrafluoroboric acid. Silver tetrafluoroborate dissolves up to ∼0.2 mol dm-3 in EMIBF4 at room temperature. Electrochemical deposition and dissolution of silver on a platinum electrode were found possible in EMIBF4 containing AgBF4. The reduction of monovalent silver species is eleclrochemically irreversible, the rate constant being estimated to be 1 ± 10 5 cms 1, The diffusion coefficient of Ag(I) is calculated to be 6 ± 10-7 cm2 s-1. suggesting that Ag(I) exists as a substantially bare cation (Aġ) in EMIBF4.

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Electrochemical Behavior of Silver in 1-Ethyl-3-methylimidazolium Tetrafluoroborate Molten Salt

Abstract

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