fig4
Figure 4. (A) LSV curves of CS, FCS, Pt@CS, and Pt@FCS; (B) overpotentials at 10 mA cm-2; (C) Tafel plots; (D) Cdl comparison extracted from CV measurements; (E) Chronopotentiometry stability test of Pt@FCS; (F) Comparison of the overpotential at 10 mA cm-2 Pt@FCS with state-of-the-art Pt-based HER electrocatalysts (references listed in Supplementary Table 4). LSV: Linear sweep voltammetry; CS: carbon support; FCS: functionalized carbon support; CV: cyclic voltammetry; HER: hydrogen evolution reaction; RHE: reversible hydrogen electrode.
