Boron cross-linked graphene oxide/polyvinyl alcohol nanocomposite gel electrolyte for flexible solid-state electric double layer capacitor with high performance

Handle URI:
http://hdl.handle.net/10754/597691
Title:
Boron cross-linked graphene oxide/polyvinyl alcohol nanocomposite gel electrolyte for flexible solid-state electric double layer capacitor with high performance
Authors:
Huang, Yi-Fu; Wu, Peng-Fei; Zhang, Ming-Qiu; Ruan, Wen-Hong; Giannelis, Emmanuel P.
Abstract:
A new family of boron cross-linked graphene oxide/polyvinyl alcohol (GO-B-PVA) nanocomposite gels is prepared by freeze-thaw/boron cross-linking method. Then the gel electrolytes saturated with KOH solution are assembled into electric double layer capacitors (EDLCs). Structure, thermal and mechanical properties of GO-B-PVA are explored. The electrochemical properties of EDLCs using GO-B-PVA/KOH are investigated, and compared with those using GO-PVA/KOH gel or KOH solution electrolyte. FTIR shows that boron cross-links are introduced into GO-PVA, while the boronic structure inserted into agglomerated GO sheets is demonstrated by DMA analysis. The synergy effect of the GO and the boron crosslinking benefits for ionic conductivity due to unblocking ion channels, and for improvement of thermal stability and mechanical properties of the electrolytes. Higher specific capacitance and better cycle stability of EDLCs are obtained by using the GO-B-PVA/KOH electrolyte, especially the one at higher GO content. The nanocomposite gel electrolytes with excellent electrochemical properties and solid-like character are candidates for the industrial application in high-performance flexible solid-state EDLCs. © 2014 Elsevier Ltd.
Citation:
Huang Y-F, Wu P-F, Zhang M-Q, Ruan W-H, Giannelis EP (2014) Boron cross-linked graphene oxide/polyvinyl alcohol nanocomposite gel electrolyte for flexible solid-state electric double layer capacitor with high performance. Electrochimica Acta 132: 103–111. Available: http://dx.doi.org/10.1016/j.electacta.2014.03.151.
Publisher:
Elsevier BV
Journal:
Electrochimica Acta
KAUST Grant Number:
KUS-C1-018-02
Issue Date:
Jun-2014
DOI:
10.1016/j.electacta.2014.03.151
Type:
Article
ISSN:
0013-4686
Sponsors:
The authors are grateful for the support of the Natural Science Foundation of China (Grant: 51173207), Key projects of Guangdong Education Office (Grant: cxzd1101) and the Natural Science Foundation of Guangdong, China (Grants: 2011B090500004, 2012B091100313, 2012A090100006 and 2013C2FC0009). EPG acknowledges support from the Energy Materials Center at Cornell, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Basic Energy Sciences, under Award No. DESC0001086. This publication is based on work supported in part by Award No. KUS-C1-018-02 from King Abdullah University of Science and Technology.
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Full metadata record

DC FieldValue Language
dc.contributor.authorHuang, Yi-Fuen
dc.contributor.authorWu, Peng-Feien
dc.contributor.authorZhang, Ming-Qiuen
dc.contributor.authorRuan, Wen-Hongen
dc.contributor.authorGiannelis, Emmanuel P.en
dc.date.accessioned2016-02-25T12:44:30Zen
dc.date.available2016-02-25T12:44:30Zen
dc.date.issued2014-06en
dc.identifier.citationHuang Y-F, Wu P-F, Zhang M-Q, Ruan W-H, Giannelis EP (2014) Boron cross-linked graphene oxide/polyvinyl alcohol nanocomposite gel electrolyte for flexible solid-state electric double layer capacitor with high performance. Electrochimica Acta 132: 103–111. Available: http://dx.doi.org/10.1016/j.electacta.2014.03.151.en
dc.identifier.issn0013-4686en
dc.identifier.doi10.1016/j.electacta.2014.03.151en
dc.identifier.urihttp://hdl.handle.net/10754/597691en
dc.description.abstractA new family of boron cross-linked graphene oxide/polyvinyl alcohol (GO-B-PVA) nanocomposite gels is prepared by freeze-thaw/boron cross-linking method. Then the gel electrolytes saturated with KOH solution are assembled into electric double layer capacitors (EDLCs). Structure, thermal and mechanical properties of GO-B-PVA are explored. The electrochemical properties of EDLCs using GO-B-PVA/KOH are investigated, and compared with those using GO-PVA/KOH gel or KOH solution electrolyte. FTIR shows that boron cross-links are introduced into GO-PVA, while the boronic structure inserted into agglomerated GO sheets is demonstrated by DMA analysis. The synergy effect of the GO and the boron crosslinking benefits for ionic conductivity due to unblocking ion channels, and for improvement of thermal stability and mechanical properties of the electrolytes. Higher specific capacitance and better cycle stability of EDLCs are obtained by using the GO-B-PVA/KOH electrolyte, especially the one at higher GO content. The nanocomposite gel electrolytes with excellent electrochemical properties and solid-like character are candidates for the industrial application in high-performance flexible solid-state EDLCs. © 2014 Elsevier Ltd.en
dc.description.sponsorshipThe authors are grateful for the support of the Natural Science Foundation of China (Grant: 51173207), Key projects of Guangdong Education Office (Grant: cxzd1101) and the Natural Science Foundation of Guangdong, China (Grants: 2011B090500004, 2012B091100313, 2012A090100006 and 2013C2FC0009). EPG acknowledges support from the Energy Materials Center at Cornell, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Basic Energy Sciences, under Award No. DESC0001086. This publication is based on work supported in part by Award No. KUS-C1-018-02 from King Abdullah University of Science and Technology.en
dc.publisherElsevier BVen
dc.subjectboron cross-linkingen
dc.subjectelectrochemical propertiesen
dc.subjectgraphene oxideen
dc.subjectpolymer nanocomposite gel electrolyteen
dc.subjectsupercapacitoren
dc.titleBoron cross-linked graphene oxide/polyvinyl alcohol nanocomposite gel electrolyte for flexible solid-state electric double layer capacitor with high performanceen
dc.typeArticleen
dc.identifier.journalElectrochimica Actaen
dc.contributor.institutionSun Yat-Sen University, Guangzhou, Chinaen
dc.contributor.institutionCornell University, Ithaca, United Statesen
kaust.grant.numberKUS-C1-018-02en
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