Synergistic Enhancement of Capacitance of Amorphous CuBHT/MoS₂ Hybrids

Abstract

A reasonable combination of different materials can produce hybrids with significantly improved properties based on synergistic effects. Here, the highly conductive amorphous Cu 3 BHT (A-CuBHT) is grown on the surface of 1T(H) phase MoS 2 by in situ polymerization. The hybrids display significantly improved electrical conductivity compared to that of the pristine MoS 2 . Moreover, the 1T phase in MoS 2 is stabilized with the cooperation of A-CuBHT. In particular, the hybrid material containing 50 wt % A-CuBHT exhibits a specific capacitance of 329.9 F g −1 , which is 2.3 times that of pure 1T(H) phase MoS 2 (143.7 F g −1 ) and 1.5 times that of A-CuBHT (220.6 F g −1 ). In addition, the asymmetric supercapacitor device constructed by the material exhibits a power density of 349.7 W kg −1 and an energy density of 13.2 W h kg −1 .