Borohydride Synthesis of the PtFeCo/Gr Electrocatalysts for Oxygen Reduction Reaction in Proton Exchange Membrane Fuel Cells

Insufficient catalytic activity and durability are the most challenging issues in the commercialization of proton exchange membrane fuel cells. In an effort to address these barriers, PtFeCo/Gr electrocatalyst were prepared via the reduction of precursors in the presence of glycerol as stabilizer. The electrocatalytic performances of the synthesized PtFeCo/Gr alloy electrocatalysts were compared with that of PtFeCo/Gr electrocatalyst which prepared in the absence of glycerol. Physical property studies (XRD) and electrochemical analyses with catalyst layers immobilized on glassy carbon electrodes and electrochemical behavior of the synthesized electrocatalyst. Finally, a cell performance investigation, using the synthesized electrocatalyst was carried out in a single PEMFC setup.Among these electroctalysts, the PtFeCo/G–A catalyst exhibits the highest activity, a better behavior was obtained for the PtFeCo/G–A and the maximum power density produced from proton exchange membrane fuel cell with PtFeCo/G–A electrocatalyst which was prepared in the presence of glycerol as stabilizer was 9% higher than PtFeCo/G–B which was prepared in the absence of glycerol.

کلیدواژه ها:

Electrocatalyst ، Graphene ، PtFeCo ، Proton exchange membrane fuel cell ، Oxygen reduction reaction ، Gas diffusion electrode