Fig. 4From: The Oxygen Reduction Electrocatalytic Activity of Cobalt and Nitrogen Co-doped Carbon Nanocatalyst Synthesized by a Flat Template a CV curves of Co-NC-900 in 0.1 mol l–1 KOH solution saturated by nitrogen and oxygen. b LSV curves of Co-NC-900 in 0.1 mol l–1 KOH solution saturated by oxygen. c LSV curves of Co-NC-900 in 0.1 mol l–1 KOH solution at different rotation rates (400–3600 rpm). d K–L plots at 0.3–0.5 V; data are obtained from (c)Back to article page