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Scalable Asymmetric Supercapacitors Based on Hybrid Organic/Biopolymer Electrodes
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- Ajjan, Fátima (author)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten
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- Vagin, Mikhail (author)
- Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten
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- Rebis, Tomasz (author)
- Poznan Univ Tech, Poland
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- (creator_code:org_t)
- 2017-07-21
- 2017
- English.
- In: ADVANCED SUSTAINABLE SYSTEMS. - : WILEY-V C H VERLAG GMBH. - 2366-7486. ; 1:8
- Journal article (peer-reviewed)
Abstract
Subject headings
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- A trihybrid bioelectrode composed of lignin, poly(3,4-ethylenedioxythiophene) (PEDOT), and poly(aminoanthraquinone) (PAAQ) is prepared by a two-step galvanostatic electropolymerization, and characterized for supercapacitor applications. Using PEDOT/Lignin as a base layer, followed by the consecutive deposition of PAAQ, the hybrid electrode PEDOT/Lignin/PAAQ shows a high specific capacitance of 418 F g(-1) with small self-discharge. This trihybrid electrode material can be assembled into symmetric and asymmetric super-capacitors. The asymmetric supercapacitor uses PEDOT + Lignin/PAAQ as positive electrode and PEDOT/PAAQ as negative electrode, and exhibits superior electrochemical performance due to the synergistic effect of the two electrodes, which leads to a specific capacitance of 74 F g(-1). It can be reversibly cycled in the voltage range of 0-0.7 V. More than 80% capacitance is retained after 10 000 cycles. These remarkable features reveal the exciting potential of a full organic energy storage device with long cycle life.
Subject headings
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Keyword
- supercapacitors; redox polymers; conducting polymers; cycling stability; lignin
Publication and Content Type
- ref (subject category)
- art (subject category)
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- Ajjan, Fátima
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- Ouyang, Liangqi
- Inganäs, Olle
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- NATURAL SCIENCES
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