Fig. 5: The performance of the catalysts for HER.
From: CoO-Mo2N hollow heterostructure for high-efficiency electrocatalytic hydrogen evolution reaction
a LSV curves, b overpotential to reach a current density of 10 mA cm−2 and 100 mA cm−2, c Tafel slopes of hollow CoO-Mo2N heterojunctions, Co-N-600-2h, Mo-N-600-2h and Pt/C; d EIS plots for hollow CoO-Mo2N-N-600-2h heterojunctions, Co-N-600-2h and Mo-N-600-2h; the inset in Fig. 1d is the equivalent circuit; e the capacitive current at 0.14 V for CoO-Mo2N-N-600-2h heterojunctions, Co-N-600-2h and Mo-N-600-2h; f time dependence of the current density for CoO-Mo2N heterojunctions at an overpotential of 65 mV for 48 h.
