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Electrochemical Synthesis and Characterization of Interpenetrating Networks of Conducting Polymers for Enhanced Charge Storage
Linköping University, Department of Physics, Chemistry and Biology. Linköping University, Faculty of Science & Engineering. University of Addis Ababa, Ethiopia.
Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics. Linköping University, Faculty of Science & Engineering.
2016 (English)In: ADVANCED MATERIALS INTERFACES, ISSN 2196-7350, Vol. 3, no 10, 1500533- p.Article in journal (Refereed) PublishedText
Abstract [en]

A supercapacitor electrode consisting of an interpenetrating network of poly(aminoanthraquinone) (PAAQ) and poly(3,4-ethylenedioxythiophene) (PEDOT) is synthesized by a simple two-step galvanostatic deposition and characterized by electrochemical methods. By electrodepositing PEDOT on top of PAAQ, it is possible to access the quinones in PAAQ and as a result the specific capacitance of PAAQ increases from 90 to 383 F g(-1) and also significantly improves the charge-storage capacity from 25 to 106 mAh g(-1) at a discharge current of 1 A g(-1). These values are also significantly higher than most reported values for PEDOT and hybrids. Moreover, the hybrid material shows excellent stability with 91% of the initial capacitance being retained after 2000 cycles at a discharge rate of 2 A g(-1).

Place, publisher, year, edition, pages
WILEY-BLACKWELL , 2016. Vol. 3, no 10, 1500533- p.
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:liu:diva-130669DOI: 10.1002/admi.201500533ISI: 000380051100001OAI: oai:DiVA.org:liu-130669DiVA: diva2:954151
Note

Funding Agencies|Knut and Alice Wallenberg Foundation

Available from: 2016-08-20 Created: 2016-08-19 Last updated: 2016-08-20

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Molla, ShimelisElfwing, AndersInganäs, Olle
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Condensed Matter Physics

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