Figure 5

(a) ORR polarization curves, (b) Koutecky-Levich plots and (c) OER polarization curves of XC-72, g-C3N4, LaNiO3 and x wt.% CNL (x = 5, 10, 20 and 30) catalysts.
(a) ORR polarization curves, (b) Koutecky-Levich plots and (c) OER polarization curves of XC-72, g-C3N4, LaNiO3 and x wt.% CNL (x = 5, 10, 20 and 30) catalysts.