Ngo, T.Moussa, M.Tung, T.T.Coghlan, C.Losic, D.2021-09-242021-09-242020Electrochimica Acta, 2020; 329:1-120013-46861873-3859https://hdl.handle.net/2440/132269A novel porous 3D-structured carbon composite material with a unique architecture by combining graphene and carbonized metal-organic framework (C-MOF) (HKUST-1) microrods for high performing supercapacitors has been synthesised and characterised. The HKUST-1 microrods were prepared by a new method, converting their diamond-like shape into microrods via mechanical shear mixing in an aqueous solution. Grinding of HKUST-1 and graphene oxide (GO) resulted in the formation of a 3D GO-MOF composite with intercalated HKUST-1 microrods between GO sheets. The composite film was treated by a laser scribing method and created a highly porous, a high surface area (>600 m2/g) and conductive 3D nanostructured composite film (L-rGO-C-MOF) used as electrodes for supercapacitor applications. The prepared film showed a high capacitance of 390 F/g at 5 mV/s, and a cyclic stability of 97.8% at 10 A/g after 5000 cycles. The symmetrical supercapacitor delivered an excellent power density of 8037.5 W/kg with an outstanding energy density of 22.3 Wh/kg confirming a new pathway to design new 3D porous graphene-MOF composites for high-performance energy storage devices.en© 2019 Elsevier Ltd. All rights reserved.Graphene composites; 3D porous graphene; MOFs; supercapacitor; laser scribinJournal article100000418010.1016/j.electacta.2019.1351040004983919000192-s2.0-85074224546503892Ngo, T. [0000-0003-3455-2236]Moussa, M. [0000-0001-5890-0851]Tung, T.T. [0000-0002-1535-5109]Coghlan, C. [0000-0003-1625-3216]Losic, D. [0000-0002-1930-072X]