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Characterization of PEDOT-Quinone Conducting Redox Polymers for Water Based Secondary Batteries
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Nanotechnology and Functional Materials. (Nanoteknologi och funktionella material)ORCID iD: 0000-0002-0036-9911
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Nanotechnology and Functional Materials. (Nanoteknologi och funktionella material)
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - BMC, Organic Chemistry. (Organisk kemi gemensamt)
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - BMC, Organic Chemistry. (Organisk kemi gemensamt)ORCID iD: 0000-0002-9092-261X
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2017 (English)In: Electrochimica Acta, ISSN 0013-4686, E-ISSN 1873-3859, Vol. 235, 356-364 p.Article in journal (Refereed) Published
Abstract [en]

Lithium-ion technologies show great promise to meet the demands that the transition towards renewable energy sources and the electrification of the transport sector put forward. However, concerns regarding lithium-ion batteries, including limited material resources, high energy consumption during production, and flammable electrolytes, necessitate research on alternative technologies for electrochemical energy storage. Organic materials derived from abundant building blocks and with tunable properties, together with water based electrolytes, could provide safe, inexpensive and sustainable alternatives. In this study, two conducting redox polymers based on poly(3,4-ethylenedioxythiophene) (PEDOT) and a hydroquinone pendant group have been synthesized and characterized in an acidic aqueous electrolyte. The polymers were characterized with regards to kinetics, pH dependence, and mass changes during oxidation and reduction, as well as their conductance. Both polymers show redox matching, i.e. the quinone redox reaction occurs within the potential region where the polymer is conducting, and fast redox conversion that involves proton cycling during pendant group redox conversion. These properties make the presented materials promising candidates as electrode materials for water based all-organic batteries.

Place, publisher, year, edition, pages
2017. Vol. 235, 356-364 p.
Keyword [en]
Conducting Redox Polymer, Quinone, Organic Batteries, Proton Batteries, Redox Matching
National Category
Nano Technology
Research subject
Engineering Science with specialization in Nanotechnology and Functional Materials
Identifiers
URN: urn:nbn:se:uu:diva-319049DOI: 10.1016/j.electacta.2017.03.068ISI: 000398330200042OAI: oai:DiVA.org:uu-319049DiVA: diva2:1085948
Funder
Swedish Foundation for Strategic Research Swedish Research CouncilCarl Tryggers foundation Swedish Energy AgencyEU, Horizon 2020, 644631
Available from: 2017-03-30 Created: 2017-03-30 Last updated: 2017-05-12Bibliographically approved

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Sterby, MiaEmanuelsson, RikardHuang, XiaoGogoll, AdolfStrömme, MariaSjödin, Martin
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