Shape-controlled porous nanocarbons for high performance supercapacitors

Handle URI:
http://hdl.handle.net/10754/563179
Title:
Shape-controlled porous nanocarbons for high performance supercapacitors
Authors:
Chén, Wěi; Baby, Rakhi Raghavan; Hedhili, Mohamed N. ( 0000-0002-3624-036X ) ; Alshareef, Husam N. ( 0000-0001-5029-2142 )
Abstract:
Porous activated nanocarbons with well-controlled dimensionality and morphology (i.e. 0D activated carbon nanoparticles, 1D activated carbon nanotubes, and 2D activated carbon nanosheets) were derived successfully from different template-induced polyaniline nanostructures by facile carbonization and activation processes. The obtained nanocarbons show large specific surface areas (1332-2005 m2 g-1), good conductivities, and highly porous nanoscale architectures. The supercapacitors fabricated using the shape-controlled nanocarbons exhibit high specific capacitance, excellent rate capability, and superior long-term cycling stability in both aqueous and ionic liquid electrolytes. More importantly, a very high energy density of 50.5 W h kg-1 with a power density of 17.4 kW kg-1 can be obtained from the activated carbon nanotube based supercapacitors in an ionic liquid electrolyte (with a charge time of ∼10 s), making the shape-controlled nanocarbons promising candidates for high-performance energy storage devices. © 2014 the Partner Organisations.
KAUST Department:
Materials Science and Engineering Program; Physical Sciences and Engineering (PSE) Division; Core Labs; Functional Nanomaterials and Devices Research Group
Publisher:
Royal Society of Chemistry (RSC)
Journal:
Journal of Materials Chemistry A
Issue Date:
2014
DOI:
10.1039/c3ta15245f
Type:
Article
ISSN:
20507488
Sponsors:
The authors thank for the characterization facilities provided by KAUST Advanced Imaging and Characterization Laboratory and Analytic Core Laboratory. We acknowledge the help from Olga Zausalina for the illustrations. W. C. acknowledges the KAUST Graduate Fellowship. R. B. R. acknowledges the SABIC Post-doctoral Fellowship, and H.N.A. acknowledges the support from KAUST baseline fund.
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Materials Science and Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorChén, Wěien
dc.contributor.authorBaby, Rakhi Raghavanen
dc.contributor.authorHedhili, Mohamed N.en
dc.contributor.authorAlshareef, Husam N.en
dc.date.accessioned2015-08-03T11:37:35Zen
dc.date.available2015-08-03T11:37:35Zen
dc.date.issued2014en
dc.identifier.issn20507488en
dc.identifier.doi10.1039/c3ta15245fen
dc.identifier.urihttp://hdl.handle.net/10754/563179en
dc.description.abstractPorous activated nanocarbons with well-controlled dimensionality and morphology (i.e. 0D activated carbon nanoparticles, 1D activated carbon nanotubes, and 2D activated carbon nanosheets) were derived successfully from different template-induced polyaniline nanostructures by facile carbonization and activation processes. The obtained nanocarbons show large specific surface areas (1332-2005 m2 g-1), good conductivities, and highly porous nanoscale architectures. The supercapacitors fabricated using the shape-controlled nanocarbons exhibit high specific capacitance, excellent rate capability, and superior long-term cycling stability in both aqueous and ionic liquid electrolytes. More importantly, a very high energy density of 50.5 W h kg-1 with a power density of 17.4 kW kg-1 can be obtained from the activated carbon nanotube based supercapacitors in an ionic liquid electrolyte (with a charge time of ∼10 s), making the shape-controlled nanocarbons promising candidates for high-performance energy storage devices. © 2014 the Partner Organisations.en
dc.description.sponsorshipThe authors thank for the characterization facilities provided by KAUST Advanced Imaging and Characterization Laboratory and Analytic Core Laboratory. We acknowledge the help from Olga Zausalina for the illustrations. W. C. acknowledges the KAUST Graduate Fellowship. R. B. R. acknowledges the SABIC Post-doctoral Fellowship, and H.N.A. acknowledges the support from KAUST baseline fund.en
dc.publisherRoyal Society of Chemistry (RSC)en
dc.titleShape-controlled porous nanocarbons for high performance supercapacitorsen
dc.typeArticleen
dc.contributor.departmentMaterials Science and Engineering Programen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentCore Labsen
dc.contributor.departmentFunctional Nanomaterials and Devices Research Groupen
dc.identifier.journalJournal of Materials Chemistry Aen
kaust.authorBaby, Rakhi Raghavanen
kaust.authorHedhili, Mohamed N.en
kaust.authorAlshareef, Husam N.en
kaust.authorChén, Wěien
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