Synthesis of porous NiS nanoflake arrays by ion exchange reaction from NiO and their high performance supercapacitor properties

A highly electronic conductive cobalt nickel sulphide dendrite/quasi-spherical nanocomposite for a supercapacitor electrode with ultrahigh areal specific capacitance

“…In addition, no impure phases in the Co 1.5 Ni 1.5 S 4 sample were observed, which confirms its pure spinel structure. For comparison, only weak characteristic peaks were observed for the CoS sample, and these peaks were assigned to the (111), (200), (211), and (220) planes [13], indicating that CoS is primarily composed of an amorphous phase. The characteristic peaks in the XRD pattern of the NiS sample were due to the hexagonal phase (JCPDS no.02e1280) [14].…”

Facile hydrothermal synthesis of NiTe and its application as positive electrode material for asymmetric supercapacitor

“…NiO [21], NiS [30]). To expand the potential window and enhance the energy density, an asymmetric supercapacitor was assembled in a 3 M aqueous KOH electrolyte using AC as the negative electrode and prepared NiTe material as the positive electrode.…”

Nickel Sulfide Nanoparticles Synthesized by Microwave-assisted Method as Promising Supercapacitor Electrodes: An Experimental and Computational Study

“…Transition metal sulfides, such as Co 9 S 8 [7], VS 2 [8], CuS [9], and NiCo 2 S 4 [10] have been greatly considered for the electrode materials and have achieved excellent electrochemical performances due to their excellent redox reversibility and relatively high capacity/capacitance [11,12]. Among the metal sulfides, nickel sulfides have drawn much attention with the advantages of good electronic conduction, high redox activity, low cost and ease of fabrication [13].…”