Iron-selenide-based titanium dioxide nanocomposites as a novel electrode material for asymmetric supercapacitors operating at 2.3 V.

ABSTRACT: This study portrays a facile wet-chemical synthesis of FeSe₂/TiO₂ nanocomposites for the first time for advanced asymmetric supercapacitor (SC) energy storage applications. Two different composites were prepared with varying ratios of TiO₂ (90 and 60%, symbolized as KT-1 and KT-2) and their electrochemical properties were investigated to obtain an optimized performance. The electrochemical properties showed excellent energy storage performance owing to faradaic redox reactions from Fe²⁺/Fe³⁺ while TiO₂ due to Ti³⁺/Ti⁴⁺ with high reversibility. Three-electrode designs in aqueous solutions showed a superlative capacitive performance, with KT-2 performing better (high capacitance and fastest charge kinetic

SUBMITTER: Ullah Shah MZ 

PROVIDER: S-EPMC9972855 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature