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Stand-up structure of graphene-like carbon nanowalls on CNT directly grown on polyacrylonitrile-based carbon fiber paper as supercapacitor

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Abstract.
This work demonstrates the directly grown graphene-like carbon nanowall (GNW)–carbon nanotube (CNT)–
polyacrylonitrile-based carbon fiber (CF) paper structure for use as a highly efficient supercapacitor. The CF was prepared by electrospinning, and was then treated by carbonization. The CNTs were directly grown on
the CF paper by microwave plasma-enhanced chemical vapor deposition using CH4/H2 precursors at
800 °C. The GNW was further reconstructed onto the CNT surface by microwave plasma-enhanced chemical
vapor deposition using CH4/H2 precursors at 1500 °C (GNW–CNT/CF). Electrochemical measurements demonstrate
that the capacitance of the GNW–CNT/CF electrode is around 176 F g−1 at a charging/discharging
current density of 0.5 mA/cm2. The stand-up structure of GNW–CNT/CF has a high capacitance, attributable
to its large surface area, high electrical conductivity and direct growth with low energy-loss. This novel
stand-up structure of GNW–CNT/CF with a high surface area and low electron-transfer resistance has great
potential for developing a revolutionary new class of nanostructured electrodes in supercapacitors or other
energy-conversion applications.

Keywords: Carbon fiber, Carbon nanotube, Graphene-like carbon nanowalls, Supercapacitor

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Informasi Detail

Judul Seri

Diamond & Related Materials

No. Panggil

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Penerbit

New York : Elsevier B.V.., 2012

Deskripsi Fisik

Diamond & Related Materials 25 (2012) 176–179

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

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Subjek

KIMIA MATERIAL

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

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