▎ 摘　　要

A series of X - MOF@GO composited with X - MOF (X6O(TATB)(4)(H+)(2)center dot (H2O)(8)center dot(DMF)(2), X=Zn, Co, Ni; H(3)TATB=4,4',4 ''-s-triazine-2,4,6-triyl-tribenzoic acid; DMF=N,N-dimethylformamide) and graphene oxide (GO) as supercapacitor electrode materials were synthesized by one - step self- assembly under hydrothermal conditions. X-ray powder diffraction, X-ray photoelectron spectroscopy and scanning electron microscopy showed that X-MOF @GO composites were successfully synthesized. Ni-MOF@1.5GO electrode with the best performance delivered a specific capacitance of 694.8 F.g(-1) at 0.5 A.g(-1). Moreover, the specific capacitance of Ni-MOF@1.5GO electrode was nearly twice of Ni-MOF, while the capacitance of Ni-MOFs@1.0GO retained about 81.2% after 1000 cycles indicating that GO doped Ni-MOF can boost the performance of MOFs materials effectively. A symmetrical capacitor based on Ni-MOF@1.5GO/MC (AC=activated carbon) electrode exhibited a high energy density of 754.3 W.kg(-1) at power density of 15.4 Wh.kg(-1), while the capacitance retention reached about 70.0% after 3 000 cycles.