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Hybridization of MOFs and graphene: a new strategy for the synthesis of porous 3D carbon composites for high performing supercapacitors

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dc.contributor.authorNgo, T.
dc.contributor.authorMoussa, M.
dc.contributor.authorTung, T.T.
dc.contributor.authorCoghlan, C.
dc.contributor.authorLosic, D.
dc.date.issued2020
dc.description.abstractA 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.
dc.description.statementofresponsibilityTruc Van Ngo, Mahmoud Moussa, Tran Thanh Tung, Campbell Coghlan, Dusan Losic
dc.identifier.citationElectrochimica Acta, 2020; 329:1-12
dc.identifier.doi10.1016/j.electacta.2019.135104
dc.identifier.issn0013-4686
dc.identifier.issn1873-3859
dc.identifier.orcidNgo, T. [0000-0003-3455-2236]
dc.identifier.orcidMoussa, M. [0000-0001-5890-0851]
dc.identifier.orcidTung, T.T. [0000-0002-1535-5109]
dc.identifier.orcidCoghlan, C. [0000-0003-1625-3216]
dc.identifier.orcidLosic, D. [0000-0002-1930-072X]
dc.identifier.urihttps://hdl.handle.net/2440/132269
dc.language.isoen
dc.publisherElsevier
dc.relation.granthttp://purl.org/au-research/grants/arc/H150100003
dc.rights© 2019 Elsevier Ltd. All rights reserved.
dc.source.urihttps://doi.org/10.1016/j.electacta.2019.135104
dc.subjectGraphene composites; 3D porous graphene; MOFs; supercapacitor; laser scribin
dc.titleHybridization of MOFs and graphene: a new strategy for the synthesis of porous 3D carbon composites for high performing supercapacitors
dc.typeJournal article
pubs.publication-statusPublished

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