Influence of solvents in the preparation of cobalt sulfide for supercapacitors.

ABSTRACT: In this study, cobalt sulfide (CoS) electrodes are synthesized using various solvents such as water, ethanol and a combination of the two via a facile chemical bath deposition method on Ni foam. The crystalline nature, chemical states and surface morphology of the prepared CoS nanoparticles are characterized using X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy and transition electron microscopy. The electrochemical properties of CoS electrodes are also evaluated using cyclic voltammetry, galvanostatic charge-discharge and electrochemical impedance spectroscopy. When used as an electrode for a supercapacitor, CoS prepared with ethanol as a solvent exhibits a capacitance of 41.36 F g^-1 at 1.5 A g^-1, which is significantly better than t

SUBMITTER: Anil Kumar Y 

PROVIDER: S-EPMC5627093 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature