fig3

From: Hierarchically porous two-dimensional Fe/N-codoped carbon nanoleaves for enhanced mass transfer and electrocatalytic oxygen reduction reaction

Hierarchically porous two-dimensional Fe/N-codoped carbon nanoleaves for enhanced mass transfer and electrocatalytic oxygen reduction reaction

Figure 3. (A) CV curves of Meso/Micro-FeNC under O₂/Ar saturation, (B) LSV curves of Meso/Micro-FeNC, Fe-NC and Pt/C catalysts under O₂ saturation and 1600 rpm and (C) Tafel slopes of Meso/Micro-FeNC, Fe-NC, and Pt/C catalysts; (D) The C_dl value of Fe-NC and Meso/Micro-FeNC, (E) LSV curves of Meso/Micro-FeNC using RRDE under 1600 rpm and (F) electron transfer number and the yield of H₂O₂ at different potentials; (G) j-t curves for the catalysts Meso/Micro-FeNC and Pt/C, (H) LSV curves of Meso/Micro-FeNC before and after 10000 cycles of CV test and (I) methanol tolerance experiments on Meso/Micro-FeNC and Pt/C. CV: Cyclic voltammetry; Meso/Micro-FeNC: meso/microporous Fe/N-codoped carbon; LSV: linear scanning voltammetry; RRDE: rotating ring-disk electrode.