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 |
|---|---|
| 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
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Hayashi, H., Yoshizawa, S., & Ito, Y. (1983). Studies on oxygen reduction in molten NaOH. Electrochimica Acta, 28(2), 149-153. https://doi.org/10.1016/0013-4686(83)85101-9