Fig. 2: Catalyst characterization and activity evaluation.
From: Managing electrolyte flow boosts the efficiency of continuous oxime electrosynthesis to over 95%
a HAADF-STEM image of the Co-N-C catalyst. b Normalized Co K-edge XANES spectra. c Fourier-transformed Co K-edge EXAFS spectra of Co-N-C and Co foil, shown in R-space. d Wavelet-transformed EXAFS analysis of Co-N-C and Co foil. e The determined FE of CYCO at different current densities over various TM-N-C catalysts. f The determined FE distribution of all products for a specific Co-N-C catalyst. g The determined productivity of CYCO at different current densities over various TM-N-C catalysts. h The cyclic durability test at a current density of 40 mA cm−2 over the Co-N-C catalyst. i Substrate scope experiments for oxime electrosynthesis using different carbon feedstocks using Co-N-C catalyst. Reaction conditions for Fig. 2i: PBS solution (pH = 5.4), KNO2 (0.03 M), carbon feedstock (0.01 M), current density (40 mA cm−2), reaction time (1 h). The related potential and voltage values are presented without iR correction (uncompensated Rs = 5.1 Ω, pH = 5.4, electrode surface area = 1.5 cm2). Data points are reported as the standard deviation derived from 3 independent experiments. Source data are provided as a Source Data file.
