High energy density supercapacitors using macroporous kitchen sponges

Handle URI:
http://hdl.handle.net/10754/562001
Title:
High energy density supercapacitors using macroporous kitchen sponges
Authors:
Chen, Wei; Baby, Rakhi Raghavan; Alshareef, Husam N. ( 0000-0001-5029-2142 )
Abstract:
Macroporous, low-cost and recyclable kitchen sponges are explored as effective electrode platforms for supercapacitor devices. A simple and scalable process has been developed to fabricate MnO 2-carbon nanotube (CNT)-sponge supercapacitor electrodes using ordinary kitchen sponges. Two organic electrolytes (1 M of tetraethylammonium tetrafluoroborate (Et 4NBF 4) in propylene carbonate (PC), 1 M of LiClO 4 in PC) are utilized with the sponge-based electrodes to improve the energy density of the symmetrical supercapacitors. Compared to aqueous electrolyte (1 M of Na 2SO 4 in H 2O), the energy density of supercapacitors tripled in Et 4NBF 4 electrolyte, and further increased by six times in LiClO 4 electrolyte. The long-term cycling performance in different electrolytes was examined and the morphology changes of the electrode materials were also studied. The good electrochemical performance in both aqueous and organic electrolytes indicates that the MnO 2-CNT-sponge is a promising low-cost electrode for energy storage systems. © 2012 The Royal Society of Chemistry.
KAUST Department:
Materials Science and Engineering Program; Physical Sciences and Engineering (PSE) Division; Advanced Membranes and Porous Materials Research Center; Functional Nanomaterials and Devices Research Group
Publisher:
Royal Society of Chemistry (RSC)
Journal:
Journal of Materials Chemistry
Issue Date:
2012
DOI:
10.1039/c2jm32030d
Type:
Article
ISSN:
09599428
Sponsors:
The authors wish to thank the Imaging and Characterization Core Facility and the Analytical Chemistry Core Laboratory for their support. W. C. acknowledges support from the KAUST Graduate Fellowship. H. A. acknowledges the support from KAUST baseline fund.
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.authorChen, Weien
dc.contributor.authorBaby, Rakhi Raghavanen
dc.contributor.authorAlshareef, Husam N.en
dc.date.accessioned2015-08-03T09:35:59Zen
dc.date.available2015-08-03T09:35:59Zen
dc.date.issued2012en
dc.identifier.issn09599428en
dc.identifier.doi10.1039/c2jm32030den
dc.identifier.urihttp://hdl.handle.net/10754/562001en
dc.description.abstractMacroporous, low-cost and recyclable kitchen sponges are explored as effective electrode platforms for supercapacitor devices. A simple and scalable process has been developed to fabricate MnO 2-carbon nanotube (CNT)-sponge supercapacitor electrodes using ordinary kitchen sponges. Two organic electrolytes (1 M of tetraethylammonium tetrafluoroborate (Et 4NBF 4) in propylene carbonate (PC), 1 M of LiClO 4 in PC) are utilized with the sponge-based electrodes to improve the energy density of the symmetrical supercapacitors. Compared to aqueous electrolyte (1 M of Na 2SO 4 in H 2O), the energy density of supercapacitors tripled in Et 4NBF 4 electrolyte, and further increased by six times in LiClO 4 electrolyte. The long-term cycling performance in different electrolytes was examined and the morphology changes of the electrode materials were also studied. The good electrochemical performance in both aqueous and organic electrolytes indicates that the MnO 2-CNT-sponge is a promising low-cost electrode for energy storage systems. © 2012 The Royal Society of Chemistry.en
dc.description.sponsorshipThe authors wish to thank the Imaging and Characterization Core Facility and the Analytical Chemistry Core Laboratory for their support. W. C. acknowledges support from the KAUST Graduate Fellowship. H. A. acknowledges the support from KAUST baseline fund.en
dc.publisherRoyal Society of Chemistry (RSC)en
dc.titleHigh energy density supercapacitors using macroporous kitchen spongesen
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.departmentFunctional Nanomaterials and Devices Research Groupen
dc.identifier.journalJournal of Materials Chemistryen
kaust.authorBaby, Rakhi Raghavanen
kaust.authorAlshareef, Husam N.en
kaust.authorChen, Weien
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