The steady-state reduction ofoxygen in O,-saturated 2 N H,SO, solution was obtalned at constant current on the front side of a Pt fo11 diaphragm before and after strong anodization of the back side. Strong anodization converts the Pt to a Pt-0 alloy. In all cases, the overvoltage for O2 reduction wa
The overpotential of oxygen reduction at platinum electrodes
β Scribed by Charles C. Liaxg; Axdre L. Juliard
- Publisher
- Elsevier
- Year
- 1965
- Weight
- 443 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0368-1874
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π SIMILAR VOLUMES
The electrochemical reduction of dissolved oxygen at pre-oxidized and pre~reduced metal electrodes has been studied using the galvanostatic and chronopotentiometric methods. Oxygen reduction at pre-oxidized electrodes occurs by a pH-dependent mechanism that gives water as the reduction product. With
Ah&act-The cathodic V log i curves for On reduction on oxide-free Pt electrodes were determined in oxygen-saturated purhied acid (HClO,, pH l-3) and alkaline (NaOH, pH 13) solutions. It was found that aV/aiogi = -2.3RTlF, .ayalOgp,, = -23RTlF and W/a pH = -100 mV. Coverage of electrodes by oxy gama
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