Facile Synthesis Of Fe2O3 Nanospheres Anchored On Oxidized Graphitic Carbon Nitride as a High-Performance Electrode Material for Supercapacitors
Xiaoyong Zhang, Huiwei Liao, Xiang Liu, Ronggang Shang, Yu Zhou, Yanna Zhou
Abstract
Fe 2 O 3 , which shows promise as an abundant and low-cost electrode material for supercapacitors has attracted much attention due to its high theoretical specific capacity. In this report, homogeneous Fe 2 O 3 nanospheres/oxidized g-C 3 N 4 (Fe 2 O 3 /OCN) are synthesized by anchoring Fe 2 O 3 nanospheres on the surface of oxidized g-C 3 N 4 for the first time via a facile hydrothermal method. More importantly, these Fe 2 O 3 nanospheres are well-dispersed on the oxidized g-C 3 N 4 layers, which can offer an abundance of active sites and effectively prevent the aggregation of Fe 2 O 3 nanospheres during electrochemical reactions. Moreover, 10%OCN/Fe 2 O 3 exhibits excellent electrochemical performance with an excellent specific capacitance of 243 F g -1 at a current density of 1A g -1 , which is better than that of pure Fe 2 O 3 nanospheres. Moreover, there is no obvious capacitance decrease after 1000 cycles. Therefore, Fe 2 O 3 /OCN is demonstrated to be an excellent electrode material for supercapacitors.