the access of electrons and reactants to the active sites on the PtNPs surface [4–6]. Synergistic effects between precious metal NPsand a wide variety of oxides [7–9] as well as polymer supports [10]have been reported.Thus far Pt nanoparticles (NPs) loaded on carbon black with highsurface area have been the most commonly used catalysts for ORR.The Pt/C catalysts exhibit desirable kinetic properties leading to‘counterbalance behavior’ in acid or alkaline condition needed forthe efficient functioning of fuel cells, which is catalytically activeenough to reduce oxygen with four-electron pathway at potentialsthat are as close as possible to the formal potential of the oxy-gen electrode [11,12]. This behavior has rendered the Pt/C systemto be the present ‘candidate of choice’ in the initial commercialapplication of PEMFC. Various methods to deposit Pt nanoparti-cles on carbon-based substrates have been documented. Amongthese methods, electrochemical deposition has the advantages oflow-energy consumption and easy control of the loading mass ofPt [13–15]. Though the Pt/C catalyst shows remarkable perfor-mance in the PEMFC, there is an ongoing quest to find suitablealternatives of the support due to a number of reasons: the oxi-dation of carbon materials during fuel cell operation degrades thecell performance. The corrosion and collapse of carbon supportslead to Pt NP agglomeration resulting in a lower Pt utilization andloss of the electrochemical surface area (ECSA) [16–18].