In-situ direct grafting of graphene quantum dots onto carbon fibre by low temperature chemical synthesis for high performance flexible fabric supercapacitor

Islam, MS; Deng, Y; Tong, L; Roy, AK; Faisal, SN; Hassan, M; Minett, AI; Gomes, VG

In-situ direct grafting of graphene quantum dots onto carbon fibre by low temperature chemical synthesis for high performance flexible fabric supercapacitor

Islam, MS Deng, Y Tong, L Roy, AK Faisal, SN Hassan, M Minett, AI Gomes, VG

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Materials Today Communications, 2017, 10, pp. 112-119
Issue Date:: 2017-03-01

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Field	Value	Language
dc.contributor.author	Islam, MS
dc.contributor.author	Deng, Y
dc.contributor.author	Tong, L
dc.contributor.author	Roy, AK
dc.contributor.author	Faisal, SN
dc.contributor.author	Hassan, M
dc.contributor.author	Minett, AI
dc.contributor.author	Gomes, VG
dc.date.accessioned	2022-09-02T03:04:08Z
dc.date.available	2022-09-02T03:04:08Z
dc.date.issued	2017-03-01
dc.identifier.citation	Materials Today Communications, 2017, 10, pp. 112-119
dc.identifier.issn	2352-4928
dc.identifier.issn	2352-4928
dc.identifier.uri	http://hdl.handle.net/10453/161210
dc.description.abstract	A novel chemical synthesis method has been developed to directly graft graphene quantum dots (GQDs) onto carbon fibre (CF) in-situ via covalent ester linkages at low temperature (90 °C). SEM and TEM images depict the grafting of GQDs on CF showing about 75% of the GQD falls below 40 nm. The grafting was further confirmed by FTIR, RAMAN, XPS and XRD spectroscopy. The flexible fabric supercapacitor manufactured using the grafted materials shows increased electrochemical capacitance (about 5.5 times) than that of CF by providing active surface sites of GQDs, creating defects on the surface and preventing GQD recombination. This supercapacitor maintained approximately 97% of its initial capacitance after 5000 cycles at 2 A g−1 current density, suggesting a stable performance of the supercapacitor and holds a promising potential in the field of advanced flexible electronic devices.
dc.language	English
dc.publisher	Elsevier
dc.relation.ispartof	Materials Today Communications
dc.relation.isbasedon	10.1016/j.mtcomm.2016.11.002
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	In-situ direct grafting of graphene quantum dots onto carbon fibre by low temperature chemical synthesis for high performance flexible fabric supercapacitor
dc.type	Journal Article
utslib.citation.volume	10
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
utslib.copyright.status	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2022-09-02T03:04:07Z
pubs.publication-status	Published
pubs.volume	10

Abstract:

A novel chemical synthesis method has been developed to directly graft graphene quantum dots (GQDs) onto carbon fibre (CF) in-situ via covalent ester linkages at low temperature (90 °C). SEM and TEM images depict the grafting of GQDs on CF showing about 75% of the GQD falls below 40 nm. The grafting was further confirmed by FTIR, RAMAN, XPS and XRD spectroscopy. The flexible fabric supercapacitor manufactured using the grafted materials shows increased electrochemical capacitance (about 5.5 times) than that of CF by providing active surface sites of GQDs, creating defects on the surface and preventing GQD recombination. This supercapacitor maintained approximately 97% of its initial capacitance after 5000 cycles at 2 A g−1 current density, suggesting a stable performance of the supercapacitor and holds a promising potential in the field of advanced flexible electronic devices.

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http://hdl.handle.net/10453/161210