“…4a). 44 Notably, A-NiFeP/NiP-Fe:25% achieved current densities of 10 mA cm −2 and 100 mA cm −2 at overpotentials of 241.8 mV and 273.7 mV, respectively. These values were considerably lower compared to NiP (335.8 mV/400.8 mV), FeP (279.9 mV/313.4 mV), NF (491.1 mV/655.8 mV), and RuO 2 (348.3 mV/457.9 mV) as shown in Fig.…”