Voltammetry of Ion Transfer across the Electrochemically Polarized Micro Liquid-Liquid Interface between Water and a Room-temperature Ionic Liquid, Tetrahexylammonium Bis(trifluoromethylsulfonyl)imide, Using a Glass Capillary Micropipette

DOI PDF Web Site Web Site Web Site ほか1件をすべて表示 一部だけ表示 被引用文献8件 参考文献87件
  • TSUJIOKA Norihiro
    Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University
  • IMAKURA Seiichi
    Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University
  • NISHI Naoya
    Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University
  • KAKIUCHI Takashi
    Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University

この論文をさがす

抄録

Ion transfer across the polarized interface between a room-temperature ionic liquid (RTIL) or room-temperature molten salt, tetrahexylammonium bis(trifluoromethylsulfonyl)imide (THAC1C1N), and water has been studied voltammetrically using a micro liquid-liquid interface formed at the orifice of a glass capillary micropipette. A small current of nanoampere level circumvents the problem of the iR drop in the viscous ionic liquid phase. Voltammograms for the transfer of moderately hydrophilic ions, such as BF4- and ClO4-, from the aqueous phase in the capillary to the bulk of THAC1C1N in which the capillary is submerged, show steady-state characteristics in that the current does not depend on the scan rate up to a few hundred millivolt per second, and the plateau in the limiting current region is proportional to the bulk concentration of analyte ions. Owing to the steady-state current, which is presumably ascribed to a noncylindrical geometry of the capillary tip, the relative magnitude of the hydrophobicity, or the affnity to the RTIL, of a series of ions can be determined from the half-wave potentials of voltammograms.

収録刊行物

  • Analytical Sciences

    Analytical Sciences 22 (5), 667-671, 2006

    社団法人 日本分析化学会

被引用文献 (8)*注記

もっと見る

参考文献 (87)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ