Electrochemical characteristics and impedance spectroscopy studies of nano-COBALT SILICATE (cas 12643-13-9) hydroxide for supercapacitor

Add time:08/22/2019    Source:sciencedirect.com

Cobalt silicate hydroxide (Co3[Si2O5]2[OH]2) was prepared by chemical method for use in electrochemical capacitors. X-ray diffraction (XRD) and transmission electron microscopy (TEM) tests indicate that the material was pure hexagonal phase with uniform nanometer size distribution. Cyclic voltammeter (CV) and galvanostatic charge/discharge measurements show that the cobalt silicate hydroxide-based electrode has stable electrochemical capacitor properties between potential range of 0.1–0.55 V with a maximum specific capacitance of 237 F g−1 in alkaline solution and 95% of capacity efficiency was reached after 150 cycles. Electrochemical impedance spectra (EIS) investigation illustrates that the capacitance of the test electrode was mainly consisted of pseudo-capacitance, which was caused by underpotential deposition of H3O+ at the electrode surface.

We also recommend Trading Suppliers and Manufacturers of COBALT SILICATE (cas 12643-13-9). Pls Click Website Link as below: cas 12643-13-9 suppliers

Prev:Layered cobalt nickel silicate hollow spheres as a highly-stable supercapacitor material☆
Next:ArticleSolvent extraction kinetics of Sm(III), Eu(III) and Gd(III) with 2-ethylhexyl phosphoric acid-2-ethylhexyl ester☆)