NiCo₂S₄ Materials for Supercapacitor Applications

Abstract

Cobalt-nickel sulfide (NiCo S ) shows extensive potential for innovative photoelectronic and energetic materials owing to distinctive physical and chemical properties. In this review, representative strategies for the fabrication and application of NiCo S and composite nanostructures are outlined for supercapacitors, with the aim of promoting the development of NiCo S and their composites in the supercapacitor field through an analysis and comparison of diverse nanostructures. A brief introduction into the structures, properties, and morphologies are presented. Further prospects and promising developments of the materials in the supercapacitor field are also proposed.

Review and prospect of NiCo2O4-based composite materials for supercapacitor electrodes

“…In addition, the rate capability and efficiency of NiCo 2 O 4 electrode material are still unacceptable despite its remarkable high theoretical capacitance. The rate capability of the electroactive material, as well-known, is principally determined by the kinetics of ion diffusion and electron transport, electronic conductivity [221] . Whereas, transition metal sulfides (TMS), especially nickel sulfide (Ni 2 S 3 , etc.…”

Boosting the cycling stability of transition metal compounds-based supercapacitors

“…Transition metal based materials can store much more energy than carbon materials thanks to the faradaic charge transfer process involved in the electrochemical process. [3,4] In the past decades, researches on transition metal oxides/hydroxides, [5][6][7][8][9][10][11][12][13][14][15] sulfides, [16][17][18][19][20][21][22][23][24] selenides, [25] phosphides, [26] and MXenes [27] based SC electrode materials have been reported extensively. The general properties of these materials and their electrochemical performance in SCs have already been well documented.…”

One‐Pot Hydrothermal Synthesis of Hexagonal WO3 Nanorods/Graphene Composites as High‐Performance Electrodes for Supercapacitors

“…All the cyclic stabilityp erformances of the 1% WO 3 NRs/rGO, WO 3 NRs, and rGO electrodes were tested at ac urrent density of 1Ag À1 . [55] For ad eeper exploration of the impedance characteristic of WO 3 NRs/rGO, electrochemical impedance spectroscopy (EIS) was conducted. In Figure 7, the Nyquist plot shows typical impedancebehaviors for supercapacitors, and all the spectra con- 302 261 225 200 77 13433 28 313 307 302 220 2.5 267 246 235 169 90 56 52151 22 92 59 23 14 rGO 100 146 139 120 108 105 96 ChemPlusChem 2017, 82,1 174 -1181 www.chempluschem.org sist of as emicircle and as traight line.…”