Abstract
AbstractGraphite rods were electrochemically exfoliated in an aqueous solution of H2PtCl6 at potentials ranging from 2.5 V to 10 V. The solution was then directly reduced in the same pot with hydrazine hydrate. Scanning Electron Microscopy (SEM) confirmed the platinum deposition onto the exfoliated graphene while Raman spectroscopy and X‐Ray Diffraction (XRD) displayed varying degrees of disorder and oxidation in the graphitic lattices exfoliated at the various potentials. Half‐cell electrochemical tests showed the reduced graphene oxide supported platinum catalysts exfoliated at 5 V displayed the highest electrochemical activity for oxygen reduction in the acidic media while the catalyst exfoliated at 8 V displayed the lowest activity.
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