Direct Synthesis of cubic shaped Ag2S on Ni mesh as Binder-free Electrodes for Energy Storage Applications

Abstract

A facile approach of chemical bath deposition was proposed to fabricate direct synthesis of silver sulphide (Ag 2 S) on nickel (Ni) mesh without involvement for binders for supercapacitor electrodes. The phase purity, structure, composition, morphology, microstructure of the as-fabricated Ag 2 S electrode was validated from its corresponding comprehensive characterization tools. The electrochemical characteristics of the Ag 2 S electrodes were evaluated by recording the electrochemical measurements such as cyclic voltammetry and charge/discharge profile in a three electrode configuration system. Ag 2 S employed as working electrode demonstrates notable faradaic behaviour including high reversible specific capacitance value of 179 C/g at a constant charge/discharge current density of 1 A/g with high cyclic stability which is relatively good as compared with other sulphide based materials. The experimental results ensure fabricated binder-free Ag 2 S electrodes exhibits better electrochemical performance and suitable for potential electrodes in electrochemical energy storage applications.

A Review of Supercapacitors: Materials Design, Modification, and Applications

“…Hexagonally shaped rigid ZnO gives a better capacitance value of 6.42 F/g, followed by hexagonal cup-shaped (6.4 F/g), nanoassembly (5.75 F/g), nanorod (4.03 F/g), and nanosphere (3.67 F/g) ZnO at 10 mV/s. Similarly, nickel telluride treated with selenide doping and poly(N-methylpyrrole) coating [159], N, P and S tri-doped hollow carbon nanocapsules [160], Ag 2 S on Ni mesh [161], carbon nanotube@MnO 2 @polypyrrole composites [162], and nickel sulphide [163] were also prepared by means of the direct coating method for supercapacitor applications. MXene and ε-MnO 2 /MXene [164] were also investigated.…”

2D Ductile Transition Metal Chalcogenides (TMCs): Novel High‐Performance Ag2S Nanosheets for Ultrafast Photonics

“…For example, graphene has no adjustable bandgap structure, so its application is greatly limited. The quality of some chalcogenides is uncertain because they are prone to oxidation and deterioration 20. Furthermore, the heterojunction materials can't be widely used in various fields because of their high cost,21 difficult to control the morphology and unable to produce in large quantities.…”

“…The quality of some chalcogenides is uncertain because they are prone to oxidation and deterioration. [20] Furthermore, the heterojunction materials can't be widely used in various fields because of their high cost, [21] difficult to control the morphology and unable to produce in large quantities. Moreover, the nonlinear optical properties of these nanomaterials need to be further understood, which obviously hinders their application in practical micro-optoelectronic devices.…”

High-responsivity hybrid α-Ag2S/Si photodetector prepared by pulsed laser ablation in liquid

“…This force may have prevented the agglomeration of the Ag 2 S NPs. CTAB has a positive surface charge [ 36 ], and CTAB molecules accumulated on the surfaces of the Ag 2 S NPs and repelled other Ag 2 S NPs due to the mobile electronic charges in Ag 2 S (negative surface charge).…”