Show simple item record

dc.contributor.authorRingk, Andreas
dc.contributor.authorLignie, Adrien
dc.contributor.authorHou, Yuanfang
dc.contributor.authorAlshareef, Husam N.
dc.contributor.authorBeaujuge, Pierre
dc.date.accessioned2016-04-07T09:18:10Z
dc.date.available2016-04-07T09:18:10Z
dc.date.issued2016-03-30
dc.identifier.citationElectropolymerized Star-Shaped Benzotrithiophenes Yield π-Conjugated Hierarchical Networks with High Areal Capacitance 2016 ACS Applied Materials & Interfaces
dc.identifier.issn1944-8244
dc.identifier.issn1944-8252
dc.identifier.pmid27028665
dc.identifier.doi10.1021/acsami.5b09962
dc.identifier.urihttp://hdl.handle.net/10754/604718
dc.description.abstractHigh-surface-area π-conjugated polymeric networks have the potential to lend outstanding capacitance to supercapacitors because of the pronounced faradaic processes that take place across the dense intimate interface between active material and electrolytes. In this report, we describe how benzo[1,2-b:3,4-b’:5,6-b’’]trithiophene (BTT) and tris-EDOT-benzo[1,2-b:3,4-b’:5,6-b’’]trithiophene (TEBTT) can serve as 2D (trivalent) building blocks in the development of electropolymerized hierarchical π-conjugated frameworks with particularly high areal capacitance. In comparing electropolymerized networks of BTT, TEBTT, and their copolymers with EDOT, we show that P(TEBTT/EDOT)-based frameworks can achieve higher areal capacitance (e.g., as high as 443.8 mF cm-2 at 1 mA cm-2) than those achieved by their respective homopolymers (PTEBTT and PEDOT) in the same experimental conditions of electrodeposition (PTEBTT: 271.1 mF cm-2 (at 1 mA cm-2) and PEDOT: 12.1 mF cm-2 (at 1 mA cm-2)). For example, P(TEBTT/EDOT)-based frameworks synthesized in a 1:1 monomer-to-comonomer ratio show a ca. 35x capacitance improvement over PEDOT. The high areal capacitance measured for P(TEBTT/EDOT) copolymers can be explained by the open, highly porous hierarchical morphologies formed during the electropolymerization step. With >70% capacitance retention over 1,000 cycles (up to 89% achieved), both PTEBTT- and P(TEBTT/EDOT)-based frameworks are resilient to repeated electrochemical cycling and can be considered promising systems for high life cycle capacitive electrode applications.
dc.description.sponsorshipThe authors acknowledge the financial support of the Office of Competitive Research Funds (OCRF) at King Abdullah University of Science and Technology (KAUST) under the “Competitive Research Grant” (CRG) program No. URF/1/1399. The authors thank the Advanced Imaging and Characterization Laboratories at KAUST for technical support.
dc.language.isoen
dc.publisherAmerican Chemical Society (ACS)
dc.relation.urlhttp://pubs.acs.org/doi/abs/10.1021/acsami.5b09962
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Materials & Interfaces, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/acsami.5b09962.
dc.titleElectropolymerized Star-Shaped Benzotrithiophenes Yield π-Conjugated Hierarchical Networks with High Areal Capacitance
dc.typeArticle
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Division
dc.identifier.journalACS Applied Materials & Interfaces
dc.eprint.versionPost-print
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)
kaust.personRingk, Andreas
kaust.personLignie, Adrien
kaust.personHou, Yuanfang
kaust.personAlshareef, Husam N.
kaust.personBeaujuge, Pierre
refterms.dateFOA2017-03-30T00:00:00Z


Files in this item

Thumbnail
Name:
acsami2E5b09962.pdf
Size:
11.83Mb
Format:
PDF
Description:
Accepted Manuscript

This item appears in the following Collection(s)

Show simple item record