Journal
MATERIALS LETTERS
Volume 264, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2020.127363
Keywords
TiO2; Doping; Supercapacitor; Energy storage; Mn doped TiO2
Funding
- National Research foundation, NRF, Republic of Korea [2017-R1C1B2011968]
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In the present study, mesoporous Mn doped TiO2 (Mn-TiO2) was synthesised by a simple sol-gel followed by solvothermal method. Brownish white powder is further characterised to confirm the synthesis of 4050 nm sized high surface area mesoporous Mn-TiO2 nanoparticle. The electrochemical study by using cyclic voltammetry (CV), galvanostatic charge-discharge (GCD) and electrochemical impedance spectroscopy (EIS) revealed nearly 2-fold enhancement of capacitance and the carrier density compared to the pure TiO2 nanoparticle. This enhanced electrochemical property could be mainly ascribed to larger surface area, mesoporous structure and appropriate concentration of Mn doping that altered the optoelectronic properties of wide band gap TiO2. (C) 2020 Elsevier B.V. All rights reserved.
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