Abstract
In this work Nb2O5/graphene supported PtCo catalyst with the Pt:Co molar ratio equal to 1:7 was fabricated by means of the rapid microwave heating method. The transmission electron microscopy (TEM) was used to detect the shape and size of catalyst particles. Inductively coupled plasma optical emission spectroscopy (ICP-OES) was employed to characterize the composition of the synthesized catalysts. The electrocatalytic activity of the prepared catalysts towards the electro-oxidation of ethanol, methanol and ethylene glycol was investigated in an alkaline medium by means of cyclic voltammetry and chrono-techniques. It has been determined that the Nb2O5/graphene supported PtCo catalyst exhibits a higher electrocatalytic activity with respect to the electro-oxidation of all alcohols as compared to that at the commercial Pt/C catalyst.
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