Effect of monovalent ion electrolyte on energy storage mechanism of nanocomposites TiO2@CNTs
DOI:
https://doi.org/10.51316/jca.2021.136Keywords:
Electrolyte, capacitance, TiO2, supercapacitorAbstract
Electrolyte plays the vital role of carrying ions in the operation of chemical power sources. In this work, the lithium, sodium and posstasium-based aqueous electrolytes were performed in the supercapacitor using nano TiO2 electrode. The anataste phase TiO2 was prepared via sol-gel route, which were charaterized by Scanning Electron Microscope (SEM), X-Ray Diffraction (XRD), Thermogravimetric analysis (TGA), and Raman. The electrochemical behaviors were conducted by cyclic voltammetry and charge-discharge cycling test. Electrochemical results showed TiO2@CNTs exhibited the pseudocapacitor behavior through the quasi-rectangle voltammetry, the maximum capacity achived using Li2SO4 1M is 245 F/g and Na2SO4 1M is 168 F/g at scan rate of 5 mV/s.
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National Foundation for Science and Technology Development
Grant numbers 02/2020/TN
