fig4
Figure 4. (A and E) LSV curves and (C and G) corresponding Tafel slopes for commercial Pt/C and RuP2 JH in (A and C) alkaline and (E and G) neutral solutions; (B and F) Overpotentials at j = 2, 10 and 50 mA cm-2 for Pt/C and RuP2 JH in (B) alkaline and (F) neutral solutions; (D) Overpotentials comparison of RuP2 JH at j = 10 mA cm-2 with recently fabricated HER electrocatalysts in alkaline media. HER: Hydrogen evolution reaction; LSV: linear sweep voltammetry.
