fig5
Figure 5. (A) The LSV curves of the commercial Pt/C and NiS@MoS2/NCx catalysts, (B) the Tafel plots estimated from LSV graph. (C) The Nyquist plots of the samples and the corresponding circuit in the inset of ‘‘C”. (D) Potential (V vs. HER) at a 10 mA cm-2 current density of the NiS@MoS2/NC50 catalyst before and after 1,000-5,000 CV cycles and the chronoamperometric curve shown in the inset of ‘‘D”.
