Smart Construction of Fe2O3 Nanowire Arrays on Carbon Cloth for Enhanced Supercapacitor and Lithium-Ion Battery

Abstract

Due to its excellent theoretical specific capacity, the transition metal oxide Fe2O3 has garnered significant attention due to its potential as a cathode material. Nevertheless, Fe2O3 remains a drawback due to low electrical conductivity and significant volume expansion in the charge and discharge process. In this experiment, we have reported a facile strategy for the Fe2O3 nanowire array grown on carbon cloth (Fe2O3@CC) by hydrothermal method. The prepared Fe2O3@CC composite served as an electrode for lithium-ion batteries (LIBs) and supercapacitors. Herein, we utilized the above-mentioned unique composite of Fe2O3@CC nanowire array supported on carbon cloth as a repetitive and directional composite of anode electrode composite with a high specific surface area. The supercapacitor exhibited a specific capacitance of 221.19 F g−1 after 500 cycles at a current density of 200 mA g−1. Fe2O3@CC nanowire composite was utilized in LIBs, demonstrating an exceptional rate capacity of 240.7 mAh g−1 at a high current density of 500 mA g−1, as well as a high reversible degree of 514.1 mAh g−1 after 100 cycles at 100 mA g−1.