Electrocatalytic Oxidation of Hydrogen Peroxide on the Graphite Electrode Based on Silver Nanoparticles

It was established that the silver nanoparticles (AgNPs) in an equimolar ratio have the highest electrochemical activity on a graphite electrode (GE) surface in an alkaline medium. The electrocatalytic oxidation mechanism of hydrogen peroxide on the GE surface was proposed. We detected an additional...

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Bibliographic Details
Published in:Key engineering materials 2017-07, Vol.743, p.287-291
Main Authors: Fedotova, Daria, Bimatov, Vladimir, Gorchakov, Eduard V., Triphonova, Evgenya, Perevezentseva, Daria
Format: Article
Language:English
Subjects:
Anodizing
Electrodes
Graphite
Hydrogen peroxide
Nanoparticles
Oxidation
Silver
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Summary:It was established that the silver nanoparticles (AgNPs) in an equimolar ratio have the highest electrochemical activity on a graphite electrode (GE) surface in an alkaline medium. The electrocatalytic oxidation mechanism of hydrogen peroxide on the GE surface was proposed. We detected an additional maximum at E = 0.3 V on the cathodic branch of the cyclic curve in the potential range from +2.0 to -1.0 V. The appearance of this maximum indicates the reduction of hydrogen peroxide generated during AgNPs electrooxidation in the potential range from -1.0 to +2.0 V.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.743.287