Citation:
Tian Jian-Hua, Gu Lin-Ying. Study of the Reduction Mechanism of MnO2 by Rotating Ring-Disk Electrode[J]. Acta Physico-Chimica Sinica,
;1996, 12(05): 446-450.
doi:
10.3866/PKU.WHXB19960512
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The cathodic reduction mechanism of MnO2 electrode is studied by means of the rotating ring-disk electrode. The mass transport process in the solution plays an important role in the reduction process of MnO2 electrode. The relation between IR-1 and ω-1/2 is deduced as a diagnostic criterion of the reduction mechanism. The dissolution-precipitation and the electron-proton mechanism occur simultaneously but the relative contributions are quite different in various pH value solutions.
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