Fig. 4From: Synthesis of PtM (M=Co, Ni)/Reduced Graphene Oxide Nanocomposites as Electrocatalysts for the Oxygen Reduction ReactionRaman spectra of PtM/rG-O nanocomposites. a GO; b PtCo/rG-O; c PtCo/rG-O-HAD; d PtNi/rG-O; e PtNi/rG-O-HADBack to article page