Ultraflexible and robust graphene supercapacitors printed on textiles for wearable electronics applications
Ultraflexible and robust graphene supercapacitors printed on textiles for wearable electronics applications
Printed graphene supercapacitors have the potential to empower tomorrow's wearable electronics. We report a solid-state flexible supercapacitor device printed on textiles using graphene oxide ink and a screen-printing technique. After printing, graphene oxide was reduced in situ via a rapid electrochemical method avoiding the use of any reducing reagents that may damage the textile substrates. The printed electrodes exhibited excellent mechanical stability due to the strong interaction between the ink and textile substrate. The unique hierarchical porous structure of the electrodes facilitated ionic diffusion and maximised the surface area available for the electrolyte/active material interface. The obtained device showed outstanding cyclic stability over 10 000 cycles and maintained excellent mechanical flexibility, which is necessary for wearable applications. The simple printing technique is readily scalable and avoids the problems associated with fabricating supercapacitor devices made of conductive yarn, as previously reported in the literature.
Abdelkader, Amr M
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Karim, Nazmul
31555bd6-2dc7-4359-b717-3b2fe223df36
Vallés, Cristina
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Afroj, Shaila
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Novoselov, Kostya S
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Yeates, Stephen G
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24 July 2017
Abdelkader, Amr M
a5c91d38-7917-4b35-bdbd-afc9aae61d78
Karim, Nazmul
31555bd6-2dc7-4359-b717-3b2fe223df36
Vallés, Cristina
8728a8d1-2993-4042-859b-3efcca1c3e3b
Afroj, Shaila
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Novoselov, Kostya S
2f354e1c-f0b0-4070-ba89-cee99c49bc10
Yeates, Stephen G
7ea53216-6a06-41e5-a207-98dcc20a5158
Abdelkader, Amr M, Karim, Nazmul, Vallés, Cristina, Afroj, Shaila, Novoselov, Kostya S and Yeates, Stephen G
(2017)
Ultraflexible and robust graphene supercapacitors printed on textiles for wearable electronics applications.
2D Materials.
(doi:10.1088/2053-1583/aa7d71).
Abstract
Printed graphene supercapacitors have the potential to empower tomorrow's wearable electronics. We report a solid-state flexible supercapacitor device printed on textiles using graphene oxide ink and a screen-printing technique. After printing, graphene oxide was reduced in situ via a rapid electrochemical method avoiding the use of any reducing reagents that may damage the textile substrates. The printed electrodes exhibited excellent mechanical stability due to the strong interaction between the ink and textile substrate. The unique hierarchical porous structure of the electrodes facilitated ionic diffusion and maximised the surface area available for the electrolyte/active material interface. The obtained device showed outstanding cyclic stability over 10 000 cycles and maintained excellent mechanical flexibility, which is necessary for wearable applications. The simple printing technique is readily scalable and avoids the problems associated with fabricating supercapacitor devices made of conductive yarn, as previously reported in the literature.
Text
Abdelkader_2017_2D_Mater._4_035016
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Accepted/In Press date: 4 July 2017
Published date: 24 July 2017
Identifiers
Local EPrints ID: 495553
URI: http://eprints.soton.ac.uk/id/eprint/495553
ISSN: 2053-1583
PURE UUID: e1660234-26a6-48d0-b37a-45f35ad794e8
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Date deposited: 18 Nov 2024 17:35
Last modified: 19 Nov 2024 03:15
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Contributors
Author:
Amr M Abdelkader
Author:
Nazmul Karim
Author:
Cristina Vallés
Author:
Shaila Afroj
Author:
Kostya S Novoselov
Author:
Stephen G Yeates
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