Coral-like structured nickel sulfide-cobalt sulfide binder-free electrode for supercapattery

One-pot hydrothermal synthesis of molybdenum nickel sulfide with graphene quantum dots as a novel conductive additive for enhanced supercapacitive performance

“…37 The positive synergistic effect of doped Mo metal particles into sheets like Ni 3 S 2 and Ni foam conductive substrates and the GQD inclusion resulted in an overall elevation of the electrochemical performance of the composite. This was possible due to (i) the binder free synthesis of the composite on Ni foam which resulted in a high conductivity substrate, 62 (ii) the flower-like morphology of the composite which not only provided enormous electroactive sites for electrolyte ion adsorption but also facilitated the charge transportation process, [63][64][65] (iii) the uniform decoration of molybdenum particles in the Ni 3 S 2 matrix which enhanced the electrical conductivity of MNS-G-n composites, [66][67][68] and (iv) the presence of highly conductive GQDs throughout the Ni 3 S 2 matrix which elevated the electrical conductivity of the composite further and eased the charge-discharge process by minimizing the diffusion length. 37,39 (v) Molybdenum leads to in situ cation substitution/doping into the nickel sulfide, which can induce a synergistic effect between Mo and Ni and change the electronic structure of the metal sites, leading to improved electrochemical performance.…”

Effect of Redox Additive in Aqueous Electrolyte for Electrochemical Energy Storage Applications of A and B Site Ordered LaCaCoCrO6 Double Perovskite

“…The nonlinear pattern of the GCD curves reveals the faradaic redox process of the synthesized material. The specific capacitance (C sp ) and specific capacity (C s ) were estimated via the following equations: [59,60]…”

Effect of binder on the performance of zinc‐tin‐sulfide nano flakes for the high‐performance supercapattery devices

“…In the quest for new materials for supercapattery, there is immense research carried out to bring in different nanostructured materials. To date, various materials like metal oxides, binary metal oxides, metal phosphates, binary/ternary metal phosphates, and currently metal sulfides are extensively investigated as a battery‐grade material for cathode in supercapattery technology 31‐34 . Metal sulfides are getting attention owing to their excellent electrochemical performance and conductivity; various metal sulfides such as Cu 2 SnS 3 , 35 Cu 5 Sn 2 S 7 /ZnS, 36 NiMnS, 37 and CuS/CoS, 38 etc.…”

“…To date, various materials like metal oxides, binary metal oxides, metal phosphates, binary/ternary metal phosphates, and currently metal sulfides are extensively investigated as a battery-grade material for cathode in supercapattery technology. [31][32][33][34] Metal sulfides are getting attention owing to their excellent electrochemical performance and conductivity; various metal sulfides such as Cu 2 SnS 3 , 35 Cu 5 Sn 2 S 7 /ZnS, 36 NiMnS, 37 and CuS/ CoS, 38 etc. are reported for the application of electrochemical energy storage devices, and still there is opportunity to investigate different metal sulfides and explore its application for energy storage devices.…”