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The effect of surface coverage by adsorbed oxygen on the kinetics of oxygen reduction at oxide free platinum

✍ Scribed by Marta Paucirova; D.M. Drazic; A. Damjanovic

Publisher
Elsevier Science
Year
1973
Tongue
English
Weight
611 KB
Volume
18
Category
Article
ISSN
0013-4686

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πŸ“œ SIMILAR VOLUMES

Electrode kinetics of oxygen reduction o
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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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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

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The oxygen coverage was determined by cathodic charging curves at different potentials under the conditions of periodic, low-speed, potentiostatic current potential curves in 1 N HCIO4 with vigorous hydrogen or argon stirring between + 0"6 V and + 1"5 V. t In the case of hydrogen stirring the net cu