Unlocking the potential of a novel hierarchical hybrid (Ni–Co)Se₂@NiMoO₄@rGO–NF core–shell electrode for high-performance hybrid supercapacitors

Abstract

Nano-hybridization of core-shell structure integrating transition metal selenide with transition metal oxides onto the surface of carbonaceous materials embellished 3D substrate are expedited as high-capacity electrode materials in energy storage...

A forest geotexture-inspired ZnO@Ni/Co layered double hydroxide-based device with superior electrochromic and energy storage performance

“…The coloration efficiency is defined as: 30,31 where ΔOD is the optical density, Δ Q is the inserted charge, and T b and T c denote the transmittance of the film in the bleached and colored states at the specified wavelength, respectively. Areal capacity and gravimetric capacity of the films were calculated from the GCD curves using: 32,33 where C a (mC cm −2 ) is the areal capacity, C m (C g −1 ) is the gravimetric capacity, I (A) is the discharge current, Δ V (V) is the discharge voltage range exclusive of the IR drop, a (cm 2 ) is the area of the electrode and m (g) is the mass of the active material (the mass of the FTO-coated glass substrate is not included).…”

Silicon Carbide Nanostructures as Potential Carbide Material for Electrochemical Supercapacitors: A Review

“…Due to their high energy density, batteries are the most accepted and adapted candidate [ 16 , 19 ]. However, when massive energy is needed with high power, SCs remain the best choice [ 20 , 21 , 22 ]. SCs are electrochemical energy storage devices that offer a higher charge storage ability than conventional capacitors with low internal resistance [ 23 , 24 ].…”

“…Mostly, carbon and its derivatives such as activated carbon, graphene oxide, carbon naontubes, SiC, and carbon nanofibers are widely-employed EDLC materials [ 5 , 21 , 24 , 30 , 35 , 36 , 37 ]; and (ii) pseudocapacitors, in which capacitance originates mainly due to the quick faradic redox reaction between electrode and electrolyte [ 38 , 39 ]. Metal-based materials such as oxides, hydroxides, selenides, sulfides, phosphides, and conductive polymers are the major pseudocapacitive materials in this case [ 2 , 18 , 22 , 23 , 28 , 40 , 41 , 42 , 43 ].…”

Mixed metal chalcogenide shell with carbon interlayer wrapped 3D NiCo 2 O 4 nanowire array: A hierarchical self‐supported electrode for high‐performance supercapacitors

“…10 Hybridizing a positive electrode material with mixed multivalent metal ions, such as NiCo 2 S@NiMoO 4 , CoS/CoFe 2 O 4 @rGO, NiCoSe 2 @NiMoO4@rGO, NiCo 2 O 4 /NiO/Co 3 O 4 , Co 9 S 8 @-NiCo 2 O 4 , and NiCoP@MoSe 2 , has created a novel pathway to boost the specific capacity by selectively designing electrode materials with nano-heterostructural design. [11][12][13][14][15][16] As such, transition metal (TM) compounds are widely explored as a promising electrode material among the multitudinous electrode materials because of their excellent intrinsic properties and good electrochemical performances. 17,18 Among them, transition metal chalcogenides stand out kinetically because of their fast electron transportation.…”