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Enhancement of capacitance performance of flexible carbon nanofiber paper by adding graphene nanosheets

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Abstract.
In this work, a flexible and freestanding carbon nanofiber/graphene nanosheet (CNF/GNS) composite
paper is prepared via electrospinning followed by high-temperature annealing using a polyacrylonitrile/
GNS/dimethylformamide mixture as electrospun precursor. The structure characterizations show
that GNS homogeneously distributes in the CNF, forming a thin, light-weight and flexible composite
paper. Due to the reinforcing effects coming from CNF and GNS, the Brunauer Emmett Teller
(BET) specific surface area, conductivity and capacitance performance of pure CNF are significantly
improved after adding GNS. The GNS/CNF composite paper exhibits the largest specific capacitance
of 197 F g−1, about 24% higher than that of pure CNF paper. Therefore, based on the above investigations,
such GNS/CNF composite paper can be a potential candidate for high-performance flexible
capacitors.

Keywords: Carbon fiber; Graphene; Composite; Supercapacitor

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Informasi Detail

Judul Seri

Journal of Power Sources

No. Panggil

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Penerbit

New York : Elsevier B.V.., 2012

Deskripsi Fisik

Journal of Power Sources 199 (2012) 373– 378

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

199 (2012)

Subjek

KIMIA KARBON

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

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