Physical and electrochemical characterization of ionic liquids based on quaternary phosphonium cations containing a carbon-carbon double bond

Katsuhiko Tsunashima*, Yasushi Ono, Masashi Sugiya

*この論文の責任著者

研究成果: ジャーナルへの寄稿学術論文査読

52 被引用数 (Scopus)

抄録

Physical and electrochemical characterizations of novel two ionic liquids based on quaternary phosphonium cations containing an unsaturated carbon-carbon bond (triethyl(4-pentenyl)phosphonium and allyltributylphosphonium cations) are presented in this report. It was found that both unsaturated phosphonium cations gave low-melting salts in combination with a bis(trifluoromethylsulfonyl)amide anion. The thermogravimetric analysis suggested that the unsaturated phosphonium ionic liquids showed higher thermal stability than those of the corresponding saturated phosphonium ILs. The unsaturated phosphonium ionic liquids also exhibited relatively low viscosity and high conductivities when compared to those of the corresponding saturated phosphonium ionic liquids. These results indicate an improving effect of introducing a carbon-carbon double bond into the phosphonium cations on both the thermal stability and the transport property. The voltammetric measurements suggested that the triethyl(4-pentenyl) phosphonium-based ionic liquid showed a high cathodic stability, enabling the deposition and dissolution of metallic lithium in the phosphonium ionic liquid system.

本文言語英語
ページ(範囲)4351-4355
ページ数5
ジャーナルElectrochimica Acta
56
11
DOI
出版ステータス出版済み - 2011/04/15

ASJC Scopus 主題領域

  • 化学工学一般
  • 電気化学

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