Electrocatalytic oxidation of hydrogen peroxide on a platinum electrode in the imitation of oxidative drug metabolism of lidocaine

The Analyst ◽  
2012 ◽  
Vol 137 (20) ◽  
pp. 4698 ◽  
Author(s):  
Eslam Nouri-Nigjeh ◽  
Andries P. Bruins ◽  
Rainer Bischoff ◽  
Hjalmar P. Permentier
Keyword(s):  
Hydrogen Peroxide ◽  
Drug Metabolism ◽  
Electrocatalytic Oxidation ◽  
Platinum Electrode ◽  
Oxidation Of Hydrogen ◽  
Oxidative Drug Metabolism

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

2017 ◽  
Vol 743 ◽  
pp. 287-291 ◽  
Author(s):  
Daria Perevezentseva ◽  
Eduard Gorchakov ◽  
Daria Fedotova ◽  
Vladimir Bimatov ◽  
Evgenya Triphonova
Keyword(s):  
Hydrogen Peroxide ◽  
Silver Nanoparticles ◽  
Alkaline Medium ◽  
Electrocatalytic Oxidation ◽  
Graphite Electrode ◽  
Oxidation Mechanism ◽  
Potential Range ◽  
Equimolar Ratio ◽  
Oxidation Of Hydrogen ◽  
Additional Maximum

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.

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