Abstract
Oxygen reduction in molten NaOH at 623 K has been studied by the use of an Ni rotating disk electrode and a porous O2 gas electrode. It was clarified that the diffusing species to the electrode surface is molecular oxygen itself, and not an oxygen-containing anion, such as O2-2, by limiting current measurements. Kinetic studies show that the following reaction mechanism is more probable: {A figure is presented} where the latter is rate determining. Since H2O transport to the electrode surface is rate determining, pO2- control is especially important, taking into account the following equilibrium; {A figure is presented}.
Original language | English |
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Pages (from-to) | 149-153 |
Number of pages | 5 |
Journal | Electrochimica Acta |
Volume | 28 |
Issue number | 2 |
DOIs | |
Publication status | Published - Feb 1983 |
ASJC Scopus subject areas
- Chemical Engineering(all)
- Electrochemistry