ZnWO4/SnO2 composite for supercapacitor applications
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Date
2020
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier B.V.
Abstract
The pristine ZnWO<inf>4</inf> and ZnWO<inf>4</inf>/SnO<inf>2</inf> composite was synthesized by solvothermal method. The crystal structure of the ZnWO<inf>4</inf> and ZnWO<inf>4</inf>/SnO<inf>2</inf> composite is determined by powder X-ray diffraction (XRD) pattern. The morphology of the samples investigated using SEM and found to be agglomerated structure. The samples are tested as an electrode material for supercapacitor using electrochemical techniques like cyclic Voltammetry (CV), Galvanostatic Charge-Discharge (GCD) and Electrochemical Impedance Spectroscopy (EIS). The ZnWO<inf>4</inf>/SnO<inf>2</inf> composite reveals 56.7 F/g specific capacitance at 1 mV/s scan rate which is higher than that of pristine material and also ZnWO<inf>4</inf>/SnO<inf>2</inf> composite exhibits good cyclic stability than pure ZnWO<inf>4</inf>. © 2020 Elsevier B.V.
Description
Keywords
Crystal structure, Cyclic voltammetry, Electric discharges, Electrochemical electrodes, Electrochemical impedance spectroscopy, Supercapacitor, Tin compounds, Agglomerated structures, Electrochemical techniques, Galvanostatic charge discharges, Powder X ray diffraction, Pristine materials, Solvothermal method, Specific capacitance, Supercapacitor application, Zinc compounds
Citation
Physica B: Condensed Matter, 2020, 596, , pp. -