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 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 medianism. The dissolutionprecipitation and the electron-proton mechanism occur simultaneously but the relative contributions are qulte different in various pH value solutions.展开更多
文摘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 medianism. The dissolutionprecipitation and the electron-proton mechanism occur simultaneously but the relative contributions are qulte different in various pH value solutions.
