Nanostructured ternary electrodes for energy-storage applications

Handle URI:
http://hdl.handle.net/10754/562095
Title:
Nanostructured ternary electrodes for energy-storage applications
Authors:
Baby, Rakhi Raghavan; Chen, Wei; Cha, Dong Kyu; Alshareef, Husam N. ( 0000-0001-5029-2142 )
Abstract:
A three-component, flexible electrode is developed for supercapacitors over graphitized carbon fabric, utilizing γ-MnO 2 nanoflowers anchored onto carbon nanotubes (γ-MnO 2/CNT) as spacers for graphene nanosheets (GNs). The three-component, composite electrode doubles the specific capacitance with respect to GN-only electrodes, giving the highest-reported specific capacitance (308 F g -1) for symmetric supercapacitors containing MnO 2 and GNs using a two-electrode configuration, at a scan rate of 20 mV s -1. A maximum energy density of 43 W h kg -1 is obtained for our symmetric supercapacitors at a constant discharge-current density of 2.5 A g -1 using GN-(γ-MnO 2/CNT)-nanocomposite electrodes. The fabricated supercapacitor device exhibits an excellent cycle life by retaining ≈90% of the initial specific capacitance after 5000 cycles. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
KAUST Department:
Materials Science and Engineering Program; Physical Sciences and Engineering (PSE) Division; Advanced Membranes and Porous Materials Research Center; Core Labs; Functional Nanomaterials and Devices Research Group
Publisher:
Wiley-VCH Verlag
Journal:
Advanced Energy Materials
Issue Date:
13-Feb-2012
DOI:
10.1002/aenm.201100609
Type:
Article
ISSN:
16146832
Appears in Collections:
Articles; Advanced Membranes and Porous Materials Research Center; Physical Sciences and Engineering (PSE) Division; Materials Science and Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorBaby, Rakhi Raghavanen
dc.contributor.authorChen, Weien
dc.contributor.authorCha, Dong Kyuen
dc.contributor.authorAlshareef, Husam N.en
dc.date.accessioned2015-08-03T09:44:40Zen
dc.date.available2015-08-03T09:44:40Zen
dc.date.issued2012-02-13en
dc.identifier.issn16146832en
dc.identifier.doi10.1002/aenm.201100609en
dc.identifier.urihttp://hdl.handle.net/10754/562095en
dc.description.abstractA three-component, flexible electrode is developed for supercapacitors over graphitized carbon fabric, utilizing γ-MnO 2 nanoflowers anchored onto carbon nanotubes (γ-MnO 2/CNT) as spacers for graphene nanosheets (GNs). The three-component, composite electrode doubles the specific capacitance with respect to GN-only electrodes, giving the highest-reported specific capacitance (308 F g -1) for symmetric supercapacitors containing MnO 2 and GNs using a two-electrode configuration, at a scan rate of 20 mV s -1. A maximum energy density of 43 W h kg -1 is obtained for our symmetric supercapacitors at a constant discharge-current density of 2.5 A g -1 using GN-(γ-MnO 2/CNT)-nanocomposite electrodes. The fabricated supercapacitor device exhibits an excellent cycle life by retaining ≈90% of the initial specific capacitance after 5000 cycles. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.en
dc.publisherWiley-VCH Verlagen
dc.titleNanostructured ternary electrodes for energy-storage applicationsen
dc.typeArticleen
dc.contributor.departmentMaterials Science and Engineering Programen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Centeren
dc.contributor.departmentCore Labsen
dc.contributor.departmentFunctional Nanomaterials and Devices Research Groupen
dc.identifier.journalAdvanced Energy Materialsen
kaust.authorBaby, Rakhi Raghavanen
kaust.authorCha, Dong Kyuen
kaust.authorAlshareef, Husam N.en
kaust.authorChen, Weien
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