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Title: Mechanism of electroreduction of oxygen on thin Co3O4 and NiCo2O4 films
Authors: Singh, Ravindra N
Tiwari, S K
Chartier, P
Issue Date: Sep-1990
Publisher: NISCAIR-CSIR, India
Abstract: Oxygen reduction on thin sprayed Co3O4 and NiCo2O4 films on titanium support has been studied in alkaline medium. Tafel plots on both the oxides indicated two slopes which were approximately - 40 and - 120 mV respectively in the low and high current density regions. The reaction order in [OH-] is nearly unity and zero at low and high current densities, respectively. The reaction follows first order kinetics with respect to the partial pressure of oxygen. Based on results a common mechanism for oxygen reduction at both the oxide electrodes is suggested.
Page(s): 837-840
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.29A(09) [September 1990]

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