Facilely Synthesized NiCo2O4/CNTs Nanocomposites for Surpercapacitors with Enhanced Performance

A facile solvothermal method without calcination was successfully developed to prepare NiCo2O4/CNTs nanocomposites. XRD and TEM images revealed the NiCo2O4 nanoparticles were tightly bonded on high conductive CNTs surface. The electrochemical properties indicated that the specific capacitance of NiCo2O4/CNTs was increased 15.4% at 1 A g(-1). And 97.1% capacitance of NiCo2O4/CNTs retained after 3000cycles, which was obviously much higher than that of pure NiCo2O4 with 81.1% retention.