One-step synthesis of amorphous Ni–Fe–P alloy as bifunctional electrocatalyst for overall water splitting in alkaline medium

Electrochemically dealloyed nanoporous Fe40Ni20Co20P15C5 metallic glass for efficient and stable electrocatalytic hydrogen and oxygen generation

“… 34 Even though chemically prepared FeCoNiP showed promising OER activity with an overpotential of 200 mV, there are many challenges associated with them, such as lack of stability and low electrical conductivity. 35 The introduction of carbon (C) is reported to improve the stability of phosphide by preventing the oxidation of phosphorous (P) to high valance states in PdFePC MG ribbon catalyst. 36 Inspired by the recent findings of electrocatalytically active metal phosphides like Fe–P, 37,38 Co–P, 39,40 and Ni–P 40 and first-row transition element based metallic glasses, this typical composition Fe 40 Ni 20 Co 20 P 15 C 5 , is selected for the current research work.…”

Nano/Microscale Integrated Mushroom-Shaped Hydrophilic CoP@Ni-CoP with Optimized Gas Bubble Release for High-Performance Water Splitting Catalysis

“…The XPS spectrum of Ni2p (Figure i) shows peaks at 851.9 and 867.7 eV, which are attributed to Ni 2+ of Ni2p 3/2 and Ni2p 1/2 , respectively, which represent the nickel phosphide of the CPNCP head part . In addition, the peaks at 856.0 and 873.7 eV indicate the surface oxidized nickel (Ni 3+ ), which are correlated with the satellite peaks at 860.7 and 878.9 eV, respectively . The P2p (Figure j) analysis shows the metal phosphide bonding peak at 129.0 eV .…”

“…71 In addition, the peaks at 856.0 and 873.7 eV indicate the surface oxidized nickel (Ni 3+ ), which are correlated with the satellite peaks at 860.7 and 878.9 eV, respectively. 72 The P2p (Figure 3j) analysis shows the metal phosphide bonding peak at 129.0 eV. 73 Also, two distinctive elements at 133.9 and 135.8 eV indicate oxidized cobalt phosphide and phosphates, respectively.…”

Electrodeposition of Amorphous Fe−P Shell on Co(OH)F Nanowire Arrays for Boosting Oxygen Evolution Electrocatalysis in Alkaline Media

“…44‐1294). After electrodeposition, Fe−P@Co(OH)F/TM still shows the similar peak characteristics but with decreased intensities and an additional peak at around 45° is observed, indicating that the Fe−P film is formed at the surface of Co(OH)F nanowires [26,27] …”

“…After electrodeposition, FeÀ P@Co(OH)F/TM still shows the similar peak characteristics but with decreased intensities and an additional peak at around 45°is observed, indicating that the FeÀ P film is formed at the surface of Co(OH)F nanowires. [26,27] The scanning electron microscopy (SEM) images (Figure 1b) suggest the formation of interconnectedCo(OH)F nanoarrays on the surface of TM. After electrodeposition, the resulting FeÀ P@Co(OH)F/TM still retains nanoarray feature and its surface becomes rougher (Figure 1c).…”