Application of the SPE method to organic electrochemistry. VIII. The incorporation of an iron redox couple into Pt-nafion and its behavior as a mediator.
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概要
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Fe<SUP>2+</SUP> and Fe<SUP>3+</SUP> were incorporated into Pt–Nafion. The full incorporation of Fe<SUP>2+</SUP> into H<SUP>+</SUP>-type Nafion was attained beyond 0.3 M FeSO<SUB>4</SUB>. The ion-exchange selectivity of Fe<SUP>2+</SUP> was estimated to about 2 to H<SUP>+</SUP>. The incorporated ions exhibited diffusional behavior inside the composite electrode. The formal potential of the incorporated iron(III/II) redox couple was dependent on both the H<SUB>2</SUB>SO<SUB>4</SUB> and the Fe<SUP>3+</SUP> and Fe<SUP>2+</SUP> concentrations. The potential shift was, however, not so large as that reported on some redox systems on polymer-coated electrodes. The incorporated redox couple was revealed to behave as a mediator in the oxidation of L-ascorbic acid.
- 公益社団法人 日本化学会の論文
著者
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Ogumi Zempachi
Department Of Energy & Hydrocarbon Chemistry Graduate School Of Engineering Kyoto University
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Takehara Zen-ichiro
Department Of Chemical Engineering Faculty Of Engineering Kansai University
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YOSHIDA Naoki
Department of Biomolecular Engineering, Tohoku University
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Yoshida Naoki
Department of Industrial Chemistry, Faculty of Engineering, Kyoto University
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Mizoe Toshiyuki
Department of Industrial Chemistry, Faculty of Engineering, Kyoto University
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