▎ 摘　　要

Metal-Organic Framework (MOF) materials attract increasing interest for their energy storage application by converting MOF into MOF derivatives. Herein, a graphene and carbon nanotube wrapped Cobalt derivatives (GrCNT@Co) electrode material is prepared by annealing the complex of ZIF-67 and graphene oxide. The as-prepared Gr-CNT@ Co shows an interconnected porous structure, a high specific surface (253.9 m(2) g(-1)), and a high specific capacitance of 1108F g(-1) with high cycling stability. Furthermore, the constructed all-solid-state asymmetric Gr-CNT@Co// N-doped rGO device exhibits a high energy density of 36.55 Wh kg(-1) at 685.3 W kg(-1), as well as an excellent cycle capacitance retention (78%) after 6000 cycles at 1.5Ag(-1), which shows that Gr-CNT@Co is very promising electrode material for portable energy storage devices applications.