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Cellulose-derived c...
Cellulose-derived carbon nanofibers/graphene composite electrodes for powerful compact supercapacitors
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- Kuzmenko, Volodymyr, 1987 (author)
- Chalmers tekniska högskola,Chalmers University of Technology,Chalmers University of Technology, Gothenburg, Sweden
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- Wang, Nan, 1988 (author)
- Chalmers tekniska högskola,Chalmers University of Technology,Chalmers University of Technology, Gothenburg, Sweden
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- Haque, Mohammad Mazharul, 1984 (author)
- Chalmers tekniska högskola,Chalmers University of Technology,Chalmers University of Technology, Gothenburg, Sweden
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- Naboka, Olga, 1981 (author)
- National Research Council Canada,National Research Council Canada, Montreal, Canada
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- Flygare, Mattias (author)
- Karlstads universitet,Institutionen för ingenjörsvetenskap och fysik (from 2013)
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- Svensson, Krister, 1969- (author)
- Karlstads universitet,Institutionen för ingenjörsvetenskap och fysik (from 2013)
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- Gatenholm, Paul, 1956 (author)
- Chalmers tekniska högskola,Chalmers University of Technology,Chalmers University of Technology, Gothenburg, Sweden
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- Karlsson, Johan, 1984 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Enoksson, Peter, 1957 (author)
- Chalmers tekniska högskola,Chalmers University of Technology,Chalmers University of Technology, Gothenburg, Sweden
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- Liu, Johan (author)
- Chalmers University of Technology, Gothenburg, Sweden
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(creator_code:org_t)
- 2017
- 2017
- English.
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In: RSC Advances. - : Royal Society of Chemistry (RSC). - 2046-2069. ; 7:73, s. 45968-45977
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https://pubs.rsc.org...
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Abstract
Subject headings
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- Herein, we demonstrate a unique supercapacitor composite electrode material that is originated from a sustainable cellulosic precursor via simultaneous one-step carbonization/reduction of cellulose/graphene oxide mats at 800 degrees C. The resulting freestanding material consists of mechanically stable carbon nanofibrous (CNF, fiber diameter 50-500 nm) scaffolds tightly intertwined with highly conductive reduced graphene oxide (rGO) sheets with a thickness of 1-3 nm. The material is mesoporous and has electrical conductivity of 49 S cm(-1), attributed to the well-interconnected graphene layers. The electrochemical evaluation of the CNF/graphene composite electrodes in a supercapacitor device shows very promising volumetric values of capacitance, energy and power density (up to 46 F cm(-3), 1.46 W h L-1 and 1.09 kW L-1, respectively). Moreover, the composite electrodes retain an impressive 97% of the initial capacitance over 4000 cycles. With these superior properties, the produced composite electrodes should be the "looked-for" components in compact supercapacitors used for increasingly popular portable electronics and hybrid vehicles.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- capacitance
- activated carbon
- porous
- paper-based supercapacitors
- structures
- Chemistry
- graphene oxide
- flexible supercapacitors
- carbonization
- enhanced performance
- electrochemical energy-storage
- reduced
- surface-area
- Physics
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Kuzmenko, Volody ...
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Wang, Nan, 1988
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Haque, Mohammad ...
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Naboka, Olga, 19 ...
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Flygare, Mattias
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Svensson, Kriste ...
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show more...
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Gatenholm, Paul, ...
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Karlsson, Johan, ...
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Enoksson, Peter, ...
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Liu, Johan
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- About the subject
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Chemical Enginee ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
- Articles in the publication
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RSC Advances
- By the university
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Chalmers University of Technology
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Karlstad University