Fig. 2: O2 electroreduction performance of Ni-SAC for the 2e− ORR to produce H2O2.
From: Boosting electrochemical oxygen reduction to hydrogen peroxide coupled with organic oxidation
a LSV curves of Ni-SAC and Ni-CNS in 0.1 M O2/N2-saturated KOH. b Faradaic efficiency (FE) and c H2O2 yield rate of each sample in the voltage range of 0.2 V to 0.7 V. d Comparison of H2O2 yield rate (mmol gcat−1 h−1) with other reported literature under alkaline condition (0.1 M KOH) in H-cell. e Stability test of Ni-SAC at 0.3 V for 20 h. f Electron transfer number (n) and HO2− % of Ni-SAC, Ni-CNS, CNS. g LSV curves corresponding to H2O2RR in N2-saturated 0.1 M KOH with 10 mM H2O2 solution. h Corresponding ORR polarization curves before and after 1 mM KSCN poisoning in 0.1 M O2-saturated KOH for Ni-SAC. i Electron transfer number (n) and HO2− % after poisoning for Ni-SAC. The three-electrode setup performed in the H-cell, RRDE, and RDE have no iR-compensation. The error bars are defined as standard deviation, and the centre of each error bar represents the mean value of the corresponding three independent experiments.
