Fig. 6: Electrochemical activity of Co-N-Mn/NC catalyst.
From: The geometric-electronic coupled design of diatomic catalyst towards oxygen reduction reaction
a iR-corrected RDE polarization curves of Co-N-Mn/NC, CoNC, MnNC, NC, and Pt/C catalysts (scan rate: 5 mV s−1, rotation rate: 1600 rpm). b Comparison of E1/2 and Jk at 0.85 V for the different catalysts. c Corresponding Tafel plots derived from the RDE polarization curves for the different catalysts. The error bars are the standard deviations of three individual calculations. d Electron transfer number (n) and H2O2 yield of Co-N-Mn/NC and the reference catalysts. e Accelerated durability test of Co-N-Mn/NC catalyst before and after 10,000 continuous CV cycles ranging from 0.7 to 1.0 V (vs. RHE). Inset: accelerated durability test of Pt/C catalyst. f Chronoamperometric test of Co-N-Mn/NC and Pt/C catalysts at 0.7 V. Source data are provided as a Source Data file.
