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
Pyrophosphate as chelating agent has been extensively used in the practice of the electrodeposition of metals. Especially the use of pyrophosphate copper plating is universal. The study of electrode processes in this ...Pyrophosphate as chelating agent has been extensively used in the practice of the electrodeposition of metals. Especially the use of pyrophosphate copper plating is universal. The study of electrode processes in this system, however, is insufficient; moreover there are some disagreements on it.展开更多
Potentiodynamic voltammetry and measurement of a.c. impedance are effective means for the study of surface state of metals. At first German electrochemists Breiter et al. described by this method the characteristic fe...Potentiodynamic voltammetry and measurement of a.c. impedance are effective means for the study of surface state of metals. At first German electrochemists Breiter et al. described by this method the characteristic feature of hydrogen and oxygen lay-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.
文摘Pyrophosphate as chelating agent has been extensively used in the practice of the electrodeposition of metals. Especially the use of pyrophosphate copper plating is universal. The study of electrode processes in this system, however, is insufficient; moreover there are some disagreements on it.
文摘Potentiodynamic voltammetry and measurement of a.c. impedance are effective means for the study of surface state of metals. At first German electrochemists Breiter et al. described by this method the characteristic feature of hydrogen and oxygen lay-
