Fig. 3: Electrochemical HER performance measurements. | Nature Communications

Fig. 3: Electrochemical HER performance measurements.

From: Rapid complete reconfiguration induced actual active species for industrial hydrogen evolution reaction

Fig. 3

a The HER polarization curves and (b) Tafel slopes of MXene, R-CoC2O4, R-CoC2O4@MXene, and Pt/C. c The relationship between TOF and the tested potentials for MXene, R-CoC2O4, and R-CoC2O4@MXene. d Digital photos of H2 bubbles during the HER process and (e) bubble size distributions on R-CoC2O4@MXene and Pt/C. f The ratios of Δη/Δlog |j| for Pt/C and R-CoC2O4@MXene at different current densities. g Chronopotentiometry curves of R-CoC2O4@MXene at constant current densities of 10, 500, and 1000 mA cm−2. h Comparison of overpotential (500 and 1000 mA cm−2) of R-CoC2O4@MXene with recently reported high current density HER catalysts in 1 M KOH solution.

Back to article page