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Covalently bonded polyaniline/fullerene hybrids with coral-like morphology for high-performance supercapacitor

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Abstract.
In this article, we report a novel fullerene–polyaniline emeraldine base (C60–PANI-EB) hybrid synthesized
through covalent bonding of polyaniline (PANI) onto para-phenylenediamine (PPD)-functionalized
fullerene and its capacity properties. C60–PANI-EB exhibits a unique coral-like porous morphology with
PANI particles interconnected by nanofibers. In comparison with polyaniline emeraldine base (PANI-EB),
C60–PANI-EB shows significantly higher specific capacitance, specific power and specific energy, and better
cycling stability. The specific capacitance of C60–PANI-EB and PANI-EB are 776 F g−1 and 492 F g−1 at
current density of 1 mA cm−2, respectively. The specific capacitance of C60–PANI-EB has 37% enhancement
over that of PANI-EB even at high current density of 100 mA cm−2. The specific energy of C60–PANI-EB is
64 Wh kg−1 at 1 mA cm−2 and the specific power is 36,595 W kg−1 at current density of 100 mA cm−2. The
greatly enhanced capacity performance can be attributed to the increased ionic conductivity induced by
the loose molecular packing structure and porous morphology as well as the increased electrical conductivity
caused by the coral-like interconnected morphology and the strong electron-withdrawing function
of the fullerene through its covalent bonding to PANI.

Keywords: Polyaniline, Fullerene, Supercapacitor, Covalent bonding, Hybrid

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Ketersediaan

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Informasi Detail

Judul Seri

Electrochimica Acta

No. Panggil

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Penerbit

New York : Elsevier Ltd.., 2010

Deskripsi Fisik

Electrochimica Acta 85 (2012) 235– 242

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

Versi lain/terkait

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