Fig. 3From: Oxygen Reduction Reaction on PtCo Nanocatalyst: (Bi)sulfate Anion Poisoninga Effect of (bi)sulfate ion concentration on ORR-specific activity at various potentials for 30 wt.% PtCo at a sweep rate of 5 mV/s. b Fitted D and G of Fig. 2a vs. potentialBack to article page