fig8
Figure 8. A-C: LSVs of OCN-NPs, OCN-200/CNTs-12h and OCN-200/CNTs-18h catalysts measured on a RDE at different rotating speeds with pH = 3 (scan rate 10 mV/s). D-E: Koutecky–Levich curves of OCN-NPs, OCN-200/CNTs-12h and OCN-200/CNTs-18h at -0.5 and -0.6 V vs. SCE. F: Comparison of TPD-O2 among OCN-NPs, OCN-200/CNTs-12h and OCN-200/CNTs-18h.
