An analysis of the voltammetric adsorption waves of methyl viologen.
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概要
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The electrochemical behavior of 1,1′-dimethyl-4,4′-bipyridinium dichloride (methyl viologen, MV) is complicated with the strong adsorption of both the oxidized (MV<SUP>2+</SUP>) and the reduced (MV<SUP>+·</SUP>) forms of MV on a mercury electrode. MV<SUP>2+</SUP> adsorbs on the electrode with a flat orientation at more positive potentials than the potential of zero charge of the mercury electrode. MV<SUP>+·</SUP> adsorbs on the electrode with a vertical orientation at more negative potentials than the formal potential of the MV<SUP>2+⁄+·</SUP> couple, (<I>E</I><SUP>0′</SUP>)<SUB>MV</SUB>. It is probable that the change in the orientation of the adsorbed MV<SUP>+·</SUP> from flat to vertical with the increase in the MV<SUP>+·</SUP> concentration in the vicinity of the (<I>E</I><SUP>0′</SUP>)<SUB>MV</SUB> leads to a strongly attractive interaction between the adsorbed MV<SUP>+·</SUP> molecules and a sharp voltammetric adsorption peak results at higher concentrations of MV<SUP>2+</SUP>.
- 公益社団法人 日本化学会の論文
著者
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Niki Katsumi
Department Of Chemistry Iowa State University
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Kobayashi Katsuyoshi
Department of Electrochemistry, Faculty of Engineering, Yokohama National University
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Niki Katsumi
Department of Electrochemistry, Faculty of Engineering, Yokohama National University
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Fujisaki Fumiaki
Department of Electrochemistry, Faculty of Engineering, Yokohama National University
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Yoshimine Toshifumi
Department of Electrochemistry, Faculty of Engineering, Yokohama National University
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- An analysis of the voltammetric adsorption waves of methyl viologen.