Reduced graphene oxide/CoS₂ porous nanoparticle hybrid electrode material for supercapacitor application

Abstract

The unique porosity derived from sulphur templates enables easy diffusion of electrolyte ions and improved electrochemical performance is obtained.

A 2D metal–organic framework/reduced graphene oxide heterostructure for supercapacitor application

“…Thus there is little sulphur doped into our rGO sheets. 39 The EDAX of NiCo-MOF/rGO is shown in Fig. 4e , clearly it shows different colours illustrating existence of different elements which is by far different from the pristine rGO mapping image.…”

Performance and future directions of transition metal sulfide‐based electrode materials towards supercapacitor/supercapattery

“…The ASC devices also revealed a capacitance retention of 76.3% after 5000 cycles. Beka et al (2019b) reported hybrid material of CoS 2 /reduced graphene oxide synthesized via hydrothermal reduction process followed by thermal annealing. The inimitable porosity consequent from the sulfur template provides suitable structure for effortless electrolyte ions diffusion and large number of active sites for electrochemical performances.…”

Recent progress in water-splitting and supercapacitor electrode materials based on MOF-derived sulfides

“…20 Zhang et al 23 demonstrated the high potentiality of CoS 2 as a cathode material for Zn-ion batteries using nonaqueous electrolytes, given the efficient Zn 2+ intercalation/deintercalation mediated by reversible 2S 2− /S 2 2− redox processes operating in a multivalent system, demonstrating interesting perspectives as materials for high-capacity batteries. Also, rGO/CoS 2 nanoparticle porous hybrids 24 showed favorable open structures for electrolyte diffusion and improved electrochemical performance, where cobalt sulfide is responsible for the enhanced specific capacitance, as well as rate capability and cycling stability, as expected for a promising electrode material for advanced energy storage devices.…”