Electrochemical Studies at Elevated Pressures: Reaction Volumes of Some Fe(III/II), Co(III/II), and Ni(III/II) Couples in Aqueous Solution and in Acetonitrile.

DOI Web Site 参考文献20件
  • Matsumoto Mitsuru
    Inorganic and Analytical Chemistry Division, Research Department of Chemistry and Physics, Graduate School of Sciences, Nagoya University
  • Tarumi Toshiyasu
    Inorganic and Analytical Chemistry Division, Research Department of Chemistry and Physics, Graduate School of Sciences, Nagoya University
  • Takahashi Isao
    Inorganic and Analytical Chemistry Division, Research Department of Chemistry and Physics, Graduate School of Sciences, Nagoya University
  • Noda Toshiaki
    Inorganic and Analytical Chemistry Division, Research Department of Chemistry and Physics, Graduate School of Sciences, Nagoya University
  • Takagi Hideo D.
    Inorganic and Analytical Chemistry Division, Research Department of Chemistry and Physics, Graduate School of Sciences, Nagoya University

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  • Electrochemical Studies at Elevated Pre

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Pressure dependence of the electrode potentials for various M3+/2+ couples (M=Fe, Co, and Ni) was measured in aqueous solution and in acetonitrile with Ag/AgCl and Ag+/Ag reference electrodes. The reaction volumes of reference electrodes were estimated from the change in the partial molar volumes of Feap3+/2+ and Co (terpyridine) 23+/2+ couples, and the reaction volumes corresponding to the formation of M (II) from M (III), ΔV°M, were isolated. The applicability of the MSA model to the electrostrictive contribution to the reaction volumes was examined. It was shown that the MSA model explains the experimantally obtained reaction volumes well for the redox couples in solution, although the predicted interaction distances between the solute ion and solvent molecules are rather small.

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