Abstract:
Nanostructured zinc-nickel-cobalt sulphide has been established as a promising
electrode material due to the synergic enhancement effect of cobalt cations replacement
with zinc and nickel. Zinc-nickel-cobalt sulphide (ZNCS) nanoparticles were
synthesized using a facile hydrothermal route followed by annealing treatment. For a
comparative study, nanostructures of nickel cobalt sulphide (NCS) and nickel sulphide
(NS) were also synthesized via same method. The synthesized samples were
characterized through versatile techniques such as XDR; for structural analysis, SEM for
morphological analysis; and for electrochemical studies, CV and GCD tests were run.
These tests affirmed the developed ZNCS nanoparticles for supercapacitors. ZNCS
nanoparticles exhibit specific capacitance of 2113.173 F g-1
at 5 Ag-1
. Cyclic stability
test conducted revealed that ZNCS possesses good electrochemical performance; 99.4 %
specific capacitance was retained for up to 1000 charge-discharge cycles.
