Figure 4
From: Enriched Pyridinic Nitrogen Atoms at Nanoholes of Carbon Nanohorns for Efficient Oxygen Reduction
(a) Linear sweep voltammograms obtained in 0.1 M O2-saturated KOH aqueous electrolyte at a rotation speed of 1600 rpm (scan rate of 5 mV s−1) and (b) K -L plots of the pristine and N-doped SWNHs obtained at a potential of 0.6 V vs. RHE.
