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Improving the Performance of Paper Supercapacitors Using Redox Molecules from Plants
RISE - Research Institutes of Sweden, ICT, Acreo. Linköping University, Sweden.
RISE - Research Institutes of Sweden, ICT, Acreo.ORCID iD: 0000-0001-8485-6209
RISE - Research Institutes of Sweden, Bioeconomy, Papermaking and Packaging.ORCID iD: 0000-0003-0838-3977
Linköping University, Sweden; Wallenberg Wood Science Center, Sweden.
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2019 (English)In: Advanced Sustainable SystemsArticle in journal (Refereed) In press
Abstract [en]

A supercapacitor made from organic and nature‐based materials, such as conductive polymers (PEDOT:PSS), nanocellulose, and an the organic dye molecule (alizarin), is demonstrated. The dye molecule, which historically was extracted from the roots of the plant rubia tinctorum, is here responsible for the improvement in energy storage capacity, while the conductive polymer provides bulk charge transport within the composite electrode. The forest‐based nanocellulose component provides a mechanically strong and nonporous network onto which the conductive polymer self‐organizes. The electrical and electrochemical properties of the material composition are investigated and prototype redox‐enhanced supercapacitor devices with excellent specific capacitance exceeding 400 F g−1 and an operational stability over >1000 cycles are demonstrated. This new class of supercapacitors, which in part are based on organic materials from plants, represents an important step toward a green and sustainable energy technology.

Place, publisher, year, edition, pages
2019.
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Natural Sciences
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URN: urn:nbn:se:ri:diva-39696DOI: 10.1002/adsu.201900050OAI: oai:DiVA.org:ri-39696DiVA, id: diva2:1341423
Available from: 2019-08-08 Created: 2019-08-08 Last updated: 2019-08-08Bibliographically approved

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Brooke, RobertGranberg, Hjalmar

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