Fig. 5: H2O2 selectivity in the enzymatic and electrocatalytic ORR.
From: Kinetically restrained oxygen reduction to hydrogen peroxide with nearly 100% selectivity
a Schematic of the electrocatalytic ORR catalyzed by single-atom catalysts. b Polarization curves at 1600 r.p.m. and simultaneous H2O2 detection currents at the ring electrode in 0.1 M acetate buffer + 0.1 M KCl (pH=4). c Calculated H2O2 selectivity at various potentials. d Schematic of the dehydrogenation of substrates and the ORR process catalyzed by single-atom catalysts. e H2O2 selectivity in NADH aerobic oxidation in 0.1 M acetate buffer (pH = 4). Data (Fig. 5e) are presented as mean values (SD). (The error bar represents the standard deviation of 3 independent measurements).
