Graphene and niobium(V) oxide/graphene supported platinum–cobalt catalysts as cathode material for oxygen reduction

Virginija Kepenienė; Raminta Stagniūnaitė; Loreta Tamašauskaitė-Tamašiūnaitė; Irena Stalnionienė; Eugenijus Norkus

doi:10.6001/chemija.2015.26.3.4

Virginija Kepenienė
Raminta Stagniūnaitė
Loreta Tamašauskaitė-Tamašiūnaitė
Irena Stalnionienė
Eugenijus Norkus

DOI: https://doi.org/10.6001/chemija.2015.26.3.4

Keywords: platinum–cobalt, niobium(V) oxide, electrocatalysts, oxygen reduction

Abstract

The paper describes fabrication of the graphene and Nb2O5/graphene supported Pt or PtCo nanoparticles catalysts by means of microwave synthesis. The electrocatalytic activities of the synthesized catalysts towards the reduction of oxygen were investigated by linear scan voltammetry.
It has been found that the graphene and Nb2O5/graphene supported PtCo nanoparticles catalysts show exhibited electrocatalytic efficiency towards the reduction of oxygen when compared with that of bare Pt/GR catalyst.