▎ 摘　　要

Using oxalic acid as a reducing agent, hydroquinone (HQ), graphene (GO), and acidified carbon nanotubes (CNTs) were compounded directly to synthesize reduced graphene oxide (rGO)/CNTs/HQ hydrogels by a one-step hydrothermal method, and the phase composition and electrochemical properties were studied. During the hydrothermal reaction, the pi bond in the hydroquinone molecule will be compounded with the large pi bond on the surface of rGO due to the pi-pi interaction. At the same time, CNTs play a role of spacer and support in rGO/CNTs/HQ and improve the conductivity of rGO/CNTs/HQ. The prepared rGO/CNTs/HQ has a mass-specific capacitance of 219 Fg(-1) at 0.5 Ag-1; at 10 Ag-1, the mass-specific capacitance retains 81%, confirming its excellent rate performance; After 2000 cycles, the mass ratio capacitance retains 94%, and the cycle performance is excellent.