Synthesis, Characterization and Electrochemical Analysis of Porous Carbon/Tungsten Oxide Composites

Over the years, the development of sustainable and renewable energy storage systems has accelerated because of the need to preserve natural resources and control energy consumption. Non-conventional energy devices, such as batteries, supercapacitors, and fuel cells, have been utilized in hybrid vehicles and portable electronic devices where chemical energy is converted to electrical energy via electrochemical reactions. Here, we synthesized mesoporous WO₃-mesoporous carbon composites using a micelle assembly approach with a poly(styrene-<i>b</i>-vinyl pyridine-<i>b</i>-ethylene oxide) block copolymer and studied the electrochemical properties focusing on its application in supercapacitor. The uniformly distributed WO₃ nanoparticles through the carbon mesostructured are effectively utilized to enhance capacitive performances. Through a combination of both faradaic and non-faradaic processes, WO₃-mesoporous carbon exhibited a high specific supercapacitance of 381 F.g⁻¹ in 1 M H₂SO₄.