Two-dimensional heterostructures of V2O5 and reduced graphene oxide as electrodes for high energy density asymmetric supercapacitors

Handle URI:
http://hdl.handle.net/10754/575916
Title:
Two-dimensional heterostructures of V2O5 and reduced graphene oxide as electrodes for high energy density asymmetric supercapacitors
Authors:
Nagaraju, Doddahalli Hanumantharayudu; Wang, Qingxiao; Beaujuge, Pierre; Alshareef, Husam N. ( 0000-0001-5029-2142 )
Abstract:
In this article, we report the synthesis of electrode materials based on two-dimensional (2D) heterostructures of V2O5 nanosheets (V2O5 NS) and reduced graphene oxide (rGO) electrodes for asymmetric supercapacitor applications. Specifically, the 2D V2O5 and rGO/V2O5 nanosheet electrodes showed a specific capacitance of 253 F g-1 and 635 F g-1, respectively at a current density of 1 A g-1. The capacitance of the heterostructures is almost 2.5 times higher than the 2D V2O5 nanosheets alone. The corresponding energy density of 39 Wh kg-1 and 79.5 Wh kg-1 were achieved for the two electrodes at a power density of 900 W kg-1 in an asymmetric supercapacitor configuration. The energy and power density using the nanosheet heterostructure are, to our knowledge, higher than any of those that were previously reported for asymmetric supercapacitors using V2O5 electrodes. This journal is
KAUST Department:
Materials Science and Engineering Program; Core Labs; Physical Sciences and Engineering (PSE) Division; Functional Nanomaterials and Devices Research Group
Publisher:
Royal Society of Chemistry (RSC)
Journal:
J. Mater. Chem. A
Issue Date:
27-Aug-2014
DOI:
10.1039/c4ta03731f
Type:
Article
ISSN:
20507488
Sponsors:
The research work reported in this publication was supported by King Abdullah University of Science and Technology (KAUST). Authors thank Muhamad Shahid for useful discussions and Narendra Kurra for his help in Raman measurements.
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Physical Sciences and Engineering (PSE) Division; Materials Science and Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorNagaraju, Doddahalli Hanumantharayuduen
dc.contributor.authorWang, Qingxiaoen
dc.contributor.authorBeaujuge, Pierreen
dc.contributor.authorAlshareef, Husam N.en
dc.date.accessioned2015-08-25T06:19:25Zen
dc.date.available2015-08-25T06:19:25Zen
dc.date.issued2014-08-27en
dc.identifier.issn20507488en
dc.identifier.doi10.1039/c4ta03731fen
dc.identifier.urihttp://hdl.handle.net/10754/575916en
dc.description.abstractIn this article, we report the synthesis of electrode materials based on two-dimensional (2D) heterostructures of V2O5 nanosheets (V2O5 NS) and reduced graphene oxide (rGO) electrodes for asymmetric supercapacitor applications. Specifically, the 2D V2O5 and rGO/V2O5 nanosheet electrodes showed a specific capacitance of 253 F g-1 and 635 F g-1, respectively at a current density of 1 A g-1. The capacitance of the heterostructures is almost 2.5 times higher than the 2D V2O5 nanosheets alone. The corresponding energy density of 39 Wh kg-1 and 79.5 Wh kg-1 were achieved for the two electrodes at a power density of 900 W kg-1 in an asymmetric supercapacitor configuration. The energy and power density using the nanosheet heterostructure are, to our knowledge, higher than any of those that were previously reported for asymmetric supercapacitors using V2O5 electrodes. This journal isen
dc.description.sponsorshipThe research work reported in this publication was supported by King Abdullah University of Science and Technology (KAUST). Authors thank Muhamad Shahid for useful discussions and Narendra Kurra for his help in Raman measurements.en
dc.publisherRoyal Society of Chemistry (RSC)en
dc.titleTwo-dimensional heterostructures of V2O5 and reduced graphene oxide as electrodes for high energy density asymmetric supercapacitorsen
dc.typeArticleen
dc.contributor.departmentMaterials Science and Engineering Programen
dc.contributor.departmentCore Labsen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentFunctional Nanomaterials and Devices Research Groupen
dc.identifier.journalJ. Mater. Chem. Aen
kaust.authorWang, Qingxiaoen
kaust.authorAlshareef, Husam N.en
kaust.authorNagaraju, Doddahalli Hanumantharayuduen
kaust.authorBeaujuge, Pierreen
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