FARHAD GOLMOHAMMADI - Department of Chemistry, Faculty of Science, Tarbiat Modares University, P.O. Box ۱۴۱۱۵-۱۷۵ Tehran, Iran
HUSSED NGHARDBI - Department of Chemistry, Faculty of Science, Tarbiat Modares University, P.O. Box ۱۴۱۱۵-۱۷۵ Tehran, Iran
MEHDI KHERMAND - Department of Chemistry, Faculty of Science, Yasouji University, Yasoui, Iran
MOHAMMADAMIR SAADATINASAB - Department of Chemistry, Faculty of Science, Tarbiat Modares University, P.O. Box ۱۴۱۱۵-۱۷۵ Tehran, Iran

Carbon-supported Pd and PdCo alloy electrocatalysts of different Pd:Coatomic ratios(1:1, 2:1, 3:1 and 10:1) were prepared by the impregnation synthesis method at room temperature by ethylene glycol (EG) reduction. The prepared PdCo bimetallic nanoparticles show a single-phase facecentered-cubic (fcc) disordered structure. The performance of these electrocatalysts in the Oxygen Reduction Reaction (ORR) was evaluated with cyclic voltammetry, linear sweep voltammetry (LSV), electrochemical impedance spectroscopy (EIS), chronoamperometry (CA), inductive coupled plasma (ICP), X-ray diffraction (XRD), and scanning electron microscopy (SEM). The best performance of synthesized catalysts was found for a Pd:Co with atomic ratio of 3:1.

PdCo alloy; Nanoparticle; Impregnation method; Oxygen Reduction Reaction