Two-dimensional NiCo₂O₄nanosheet-coated three-dimensional graphene networks for high-rate, long-cycle-life supercapacitors

Abstract

. (2015). Two-dimensional NiCo2O4 nanosheet-coated three-dimensional graphene networks for high-rate, long-cycle-life supercapacitors. Nanoscale, 7 (16), 7035-7039.

Mesoporous NiCo2O4 nanoneedles grown on three dimensional graphene networks as binder-free electrode for high-performance lithium-ion batteries and supercapacitors

“…Synthesis of 3D graphene network on nickel foam (3DGN) by CVD: The preparation of 3DGN was according to the previous work with slight modifications [44,53,55,56]. In a typical synthesis, nickel foams were placed in a quartz tube furnace and heated to 1000 °C with a heating ramp rate of ∼37 °C min -1 in the mixed gas of Ar (160 sccm) and H 2 (40 sccm).…”

“…To further improve the electrochemical performances of NiCo 2 O 4 , we believe that three-dimensional graphene networks (3DGN) may be the most ideal substrate for the construction of high-performance binder-free electrode because of their large surface area, outstanding mechanical properties and high electrical conductivity [43][44][45][46][47]. Athough there have been many reports on the synthesis of NiCo 2 O 4 nanostructures on conductive substrates [15,37,39,[48][49][50][51][52], there are still very few reports on the fabrication of NiCo 2 O 4 nanostructures on 3D grapheme [53,54]. To the best of our knowledge, there is no study on the LIBs evaluation of NiCo 2 O 4 nanostructures on 3D graphene.…”

A facile one-step approach to hierarchically assembled core–shell-like MnO2@MnO2 nanoarchitectures on carbon fibers: An efficient and flexible electrode material to enhance energy storage

“…have been extensively investigated as electrode materials for pseudocapacitors [23][24][25][26][27][28][29]. Among them, MnO 2 nanostructures (NSs) have received considerable attention because of their high theoretical specific capacitance, environmental friendliness, low cost, and low toxicity [30,31].…”

Highly flexible conductive fabrics with hierarchically nanostructured amorphous nickel tungsten tetraoxide for enhanced electrochemical energy storage

“…Therefore, the direct growth of electroactive materials onto the conductive substrates produces binder-and conductive additive-free electrodes for high-performance pseudocapacitors by removing the abovementioned limitations, and increases the electroactive sites for reversible Faradic redox reactions between nanomaterials and electrolyte solution [23][24][25][26]. Various growth methods including hydrothermal synthesis, solvothermal method, physical deposition, and electrochemical deposition (ED) have been employed to fabricate electroactive materials directly on specific conductive substrates based on conventional pseudocapacitor electrodes [27][28][29][30]. Of these methods, the ED process is versatile and simple for the deposition of various nanostructured materials on the conductive substrates with the help of an applied external cathodic voltage in the growth solution.…”