Omnidirectional porous fiber scrolls of polyaniline nanopillars array-N-doped carbon nanofibers for fiber-shaped supercapacitors

Yang, D; Ni, W; Cheng, J; Wang, Z; Li, C; Zhang, Y; Wang, B

Omnidirectional porous fiber scrolls of polyaniline nanopillars array-N-doped carbon nanofibers for fiber-shaped supercapacitors

Yang, D Ni, W

Cheng, J Wang, Z Li, C Zhang, Y Wang, B

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Publication Type:: Journal Article
Citation:: Materials Today Energy, 2017, 5 pp. 196 - 204
Issue Date:: 2017-09-01

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Field	Value	Language
dc.contributor.author	Yang, D	en_US
dc.contributor.author	Ni, W https://orcid.org/0000-0002-4933-594X	en_US
dc.contributor.author	Cheng, J	en_US
dc.contributor.author	Wang, Z	en_US
dc.contributor.author	Li, C	en_US
dc.contributor.author	Zhang, Y	en_US
dc.contributor.author	Wang, B	en_US
dc.date.issued	2017-09-01	en_US
dc.identifier.citation	Materials Today Energy, 2017, 5 pp. 196 - 204	en_US
dc.identifier.uri	http://hdl.handle.net/10453/126877
dc.description.abstract	© 2017 Elsevier Ltd Rolled-up fiber scrolls with outer omnidirectional porous and inner hierarchical porous structure have been fabricated as electrodes of fiber-shaped supercapacitors (FSCs) by polymerizing polyaniline (PANi) nanopillars onto hierarchical 3D interconnected porous N-doped carbon nanofibers scrolls (PANi-HCNFs). The as-prepared fiber-shaped PANi-HCNFs electrode materials used for all solid-state FSCs display excellent electrochemical performance with a high specific capacitance of 339.3 F g −1 (85.1 mF cm −1 ) and specific mass energy density of 11.6 Wh kg −1 (areal energy density of 4.28 μWh cm −2 ). Meanwhile, PANi-HCNFs show good cycling stability with capacity retention of 74.2% after 3000 cycles at 0.5 A g −1 . The superior electrochemical performance can be attributed to the combining of PANi nanopillars array on the 3D interconnected conducting network with the outer omnidirectional porous and inner hierarchical porous composite structure. This unique composite structure can provide high specific surface area, enabling the effective transport of electrolyte to the inner region of the composite fiber. The backbones of N-doped carbon nanofibers form abundant interconnected conductive network and offer multiple electronic transfer paths. Meanwhile, introducing nanostructured PANi nanopillars array into the carbon matrix can improve higher energy density and provide better cycling stability.	en_US
dc.relation.ispartof	Materials Today Energy	en_US
dc.relation.isbasedon	10.1016/j.mtener.2017.06.011	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	Omnidirectional porous fiber scrolls of polyaniline nanopillars array-N-doped carbon nanofibers for fiber-shaped supercapacitors	en_US
dc.type	Journal Article
utslib.citation.volume	5	en_US
utslib.for	0906 Electrical and Electronic Engineering	en_US
pubs.embargo.period	Not known	en_US
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.declined	2018-08-08T16:31:19.650+1000
pubs.publication-status	Published	en_US
pubs.volume	5	en_US

Abstract:

© 2017 Elsevier Ltd Rolled-up fiber scrolls with outer omnidirectional porous and inner hierarchical porous structure have been fabricated as electrodes of fiber-shaped supercapacitors (FSCs) by polymerizing polyaniline (PANi) nanopillars onto hierarchical 3D interconnected porous N-doped carbon nanofibers scrolls (PANi-HCNFs). The as-prepared fiber-shaped PANi-HCNFs electrode materials used for all solid-state FSCs display excellent electrochemical performance with a high specific capacitance of 339.3 F g −1 (85.1 mF cm −1 ) and specific mass energy density of 11.6 Wh kg −1 (areal energy density of 4.28 μWh cm −2 ). Meanwhile, PANi-HCNFs show good cycling stability with capacity retention of 74.2% after 3000 cycles at 0.5 A g −1 . The superior electrochemical performance can be attributed to the combining of PANi nanopillars array on the 3D interconnected conducting network with the outer omnidirectional porous and inner hierarchical porous composite structure. This unique composite structure can provide high specific surface area, enabling the effective transport of electrolyte to the inner region of the composite fiber. The backbones of N-doped carbon nanofibers form abundant interconnected conductive network and offer multiple electronic transfer paths. Meanwhile, introducing nanostructured PANi nanopillars array into the carbon matrix can improve higher energy density and provide better cycling stability.

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http://hdl.handle.net/10453/126877