Figure 1 | Scientific Reports

Figure 1

From: A Class of High Performance Metal-Free Oxygen Reduction Electrocatalysts based on Cheap Carbon Blacks

Figure 1

Electrochemical characterization of BP2000-NF.

(a) CVs of pure BP2000, BP2000-N, BP2000-F and BP2000-NF in O2-saturated 0.1 M KOH with scan rate of 50 mV/s. (b) RDE polarization curves of pure BP2000, BP2000-N, BP2000-F, BP2000-NF and Pt/C in O2-saturated 0.1 M KOH with scan rate of 5 mV/s and rotation speed of 1600 rpm. (c) Voltamperograms for oxygen reduction on BP2000-NF in O2-saturated 0.1 M KOH at various rotation speeds with scan rate of 5 mV/s. Inset: K-L plots at different potentials. (d) Tafel plots for BP2000-NF and Pt/C extracted from (b). The loading of catalysts is 0.39 mg cm−2 for doped carbon catalysts and 24 μgPt cm−2 for commercial Pt/C.

Back to article page