AN EXPERIMENTAL APPROACH TO THE REVERSIBLE OXYGEN ELECTRODE

Oxygen electrodes on platinum in 1 M KOH are described which exhibit rest potentials from 0.9 to 1.59 = 0.01 V, vs H2 (1 atm) in the same solution. The electrodes will operate reversibly about these rest potentials with respect to small anodic and cathodic loads. The current/potential (I/E) plots at...

Full description

Saved in:
Bibliographic Details
Main Author: Criddle,E E
Format: Report
Language:English
Subjects:
ANODES
CANADA
CATHODES
ELECTRIC CURRENT
ELECTRODES
FUEL CELLS
IMPURITIES
OXYGEN
PEROXIDES
PH FACTOR
PLATINUM
POLARIZATION
PRESSURE
SORPTION
VOLTAGE
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Oxygen electrodes on platinum in 1 M KOH are described which exhibit rest potentials from 0.9 to 1.59 = 0.01 V, vs H2 (1 atm) in the same solution. The electrodes will operate reversibly about these rest potentials with respect to small anodic and cathodic loads. The current/potential (I/E) plots at higher loads are similar in slope and position for electrodes of both low and high rest potential. The effects of impurities, pH, and pressure on these potentials and I/E curves are investigated experimentally. The self-sustaining nature of these potentials is demonstrated by potential/time recovery curves on a 1.45 V electrode. The sorption of oxygen on platinum and the nature of the peroxide electrode are reviewed briefly to clarify the results obtained on the high potential electrodes. (Author) Pub. in Electrochimica Acta v9 n7 p853-68 1964 (Copies available only to DDC users).