Acceleration of Electroreduction Reaction of Water-Soluble Selenium Compounds in the Presence of Methyl Viologen

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概要

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• The addition of methyl viologen (MV2+) accelerates the reduction of Na2SeO3 not only in 0.1 mol dm−3 sodium phosphate buffer (PBS, pH 7) but also in 0.22 mol dm−3 sodium acetate buffer (pH 4). Water-insoluble red Se is dispersed in the vicinity of the electrode surface as the reduced product. Michaelis-Menten-type relationship is obtained between the reduction current and the concentration of Na2SeO3, suggesting that MV2+ molecules mediate the electron transfer from the electrode to HSeO3− or SeO32− dissolved in PBS. MV2+ is also effective in accelerating the reduction of SeO42−, which has already been reported to be electrochemically inactive.

著者

• Imabayashi Shin-ichiro

  Department Of Chemistry And Biotechnology Faculty Of Engineering Yokohama National University

• OOYA Akiyuki

  Department of Applied Chemistry, Shibaura Institute of Technology

• KOSHIKUMO Fumiya

  Department of Applied Chemistry, Shibaura Institute of Technology

• MURATA Wakana

  Department of Applied Chemistry, Shibaura Institute of Technology

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• Acceleration of Electroreduction Reaction of Water-Soluble Selenium Compounds in the Presence of Methyl Viologen

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