An effective interaction in polypyrrole/nickel phosphide (PPy/Ni2P) for high-performance supercapacitor

Synergistically enhanced performance of transition-metal doped Ni2P for supercapacitance and overall water splitting

“…Liu et al recently prepared a series of Ni2P doped polypyrrole composites and tested their electrochemical application as supercapacitors. 35 Their 30% Ni2P doped polypyrrole composite had the best performance of 476.5 F/g, which is 29% lower than our prepared Ni2P (674 F/g), 45% lower than Co-Ni2P (864 F/g), and 44% lower than our Fe-Ni2P (856 F/g) electrodes, respectively at 1A/g current density. A comparison of the supercapacitance of our electrodes to other similar nickel phosphide materials shows that our materials outperform other electrodes under similar conditions (Table S1).…”

Hierarchical Nickel–Cobalt Phosphide/Phosphate/Carbon Nanosheets for High-Performance Supercapacitors

“…17,18 These characteristics make phosphides show high capacities and satisfying rate performances when used as electrode materials for energy storage devices. 19−21 As a result, various phosphides such as molybdenum phosphide, 22,23 iron phosphide, 24 cobalt phosphide, 25,26 and nickel phosphide 27,28 have emerged as novel anode materials for capacitive energy storage devices.…”

“…Among the various functional inorganic materials for SCs, metal oxides, sulfides, and hydroxides possess high specific capacity and occupy the research focus. However, poor electrical conductivity limits their rate performance. , Recently, transition-metal phosphides have been used as electroactive materials in rechargeable batteries and SCs because of their metal-like properties, high electronic conductivity properties, rich active sites, and good structural stability. , These characteristics make phosphides show high capacities and satisfying rate performances when used as electrode materials for energy storage devices. − As a result, various phosphides such as molybdenum phosphide, , iron phosphide, cobalt phosphide, , and nickel phosphide , have emerged as novel anode materials for capacitive energy storage devices.…”

Status review of nickel phosphides for hybrid supercapacitors

“…The synthesis of NPs can be carried out by various strategies, such as hydrothermal, 43,62–72 solvothermal, 73–83 electrodeposition, 58,84–86 ball milling, 87 phosphorization, 88–93 colloidal synthesis, 94 chemical vapour deposition. 95 Various interesting morphologies of NPs have been reported, including nanoparticles, 68,71,73,75–77,81,83,91,92 nanospheres, 66,85 nanoflakes, 80,86 nanofibres, 82 nanorods, 88 nanosheets, 43,62–64,89 nanotubes, 65 nanocapsules, 72 nanoplates, 59,94 nanowires, 96 microspheres, 70,74,78,90 and microstructures. 87,93 The different nano/microstructures and morphologies of NPs exhibit diverse electrochemical activities (Table 2).…”

“…Similar studies were carried out to study Ni 2 P as a supercapacitive electrode. 61,75,77,87,89 To boost the performance of the Ni 2 P electrode, numerous studies have reported the compositing of Ni 2 P with carbon-based materials (graphene, 76,101 carbon 78,102 ), with polymers 66 etc .…”