Synthesis of vertical aligned TiO2@polyaniline core–shell nanorods for high-performance supercapacitors

Abstract

Ordered arrays of a TiO₂@polyaniline core–shell nanocomposite exhibiting specific capacitance as high as 820 F g⁻¹ at 1 A g⁻¹ were prepared by the combination of hydrothermal and in situ chemical polymerization methods. The specific capacitance retention of the nanocomposite is over 85% after 1000 charge and discharge cycles at a current density of 10 A g⁻¹, suggesting good cycling stability.