Figure 3

OER polarization curves (a), Tafel plots (b) and ORR polarization curves (c) and potential gaps (ΔE, d) of NSPC, Co9S8, Co9S8+NSPC, Co9S8/NSC, Pt/C, RuO2 and Co9S8/NSPC9–45.
OER polarization curves (a), Tafel plots (b) and ORR polarization curves (c) and potential gaps (ΔE, d) of NSPC, Co9S8, Co9S8+NSPC, Co9S8/NSC, Pt/C, RuO2 and Co9S8/NSPC9–45.