Facile Synthesis of a NiCo2O4 Nanoparticles Mesoporous Carbon Composite as Electrode Materials for Supercapacitor

Combination the materials together is a direct and forceful strategy to improve the electrochemical properties of each raw material. Herein, we present the method of hydrothermal process and treatment/calcination combination that is easy to synthesize a NiCo(2)O(4)nanoparticles-mesoporous carbon composite (C/NiCo2O4). The result study electrochemical properties of materials revealed that the C/NiCo2O4 composite has excellent electrochemical properties compare with pristine NiCo(2)O(4)or carbon. In particular, maximum specific capacitance of C/NiCo(2)O(4)material at a current density of 1 A.g(-1)is 204.28 F.g(-1), meanwhile the C(s)of carbon and NiCo(2)O(4)are 25.06 F.g(-1)and 178.78 F.g(-1), respectively. In addition, C/NiCo(2)O(4)material also showed excellent capacitance retention, C(s)maintained to 90.35% after 3000 charge-discharge continuous cycles. The results show that the C/NiCo(2)O(4)is a promising material for application as supercapacitor electrode.