MnCo2O4/g-C3N4 composite material preparation and its capacitance performance

MnCo 2 O 4 /g-C 3 N 4 composite material was synthesized by the hydrothermal method, compared with MnCo 2 O 4 without g-C 3 N 4 , it has excellent electrochemical performance. The composite material can reach a specific capacitance of 350 Fg − 1 at 1 Ag − 1 . The capacity retention rate is 96% after 1000 cycles at the rate of 2 Ag − 1 . Experiments show that g-C 3 N 4 can effectively disperse and improve the conductivity of urchin-like MnCo 2 O 4 , and the composite of sufficient g-C 3 N 4 can give full play to the performance of urchin-like MnCo 2 O 4 , provide faster electronic transport channels, effectively improve the ion migration rate, and make urchin-like MnCo 2 O 4 increase the rate performance under high charge and discharge rates.