e-journal

Ethylene glycol reduced graphene oxide/polypyrrole composite for supercapacitor

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Abstract.
A promising supercapacitor material based on graphene/polypyrrole (PPy) has been successfully synthesized
via in situ oxidation polymerization of pyrrole monomers in aqueous graphene oxide (GO)
solutions, followed by chemical reduction using ethylene glycol (EG). Unlike the commonly employed
hydrazine reduction, the moderate EG reductant does not destruct the PPy conjugative structures, thus
facilitating utilization of the electroactive conductive polymer. The morphologies and the structures of the
as-prepared materials are characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD),
Raman spectra, and Fourier transform infrared spectroscopy (FTIR). And the electrochemical performance
of the fabricated electrodes was evaluated by cyclic voltammetry (CV), galvanostatic charge–discharge
(GCD), and electrochemical impedance spectroscopy (EIS). The EG-RGO/PPy electrode shows large specific
capacitance, high rate performance, and good charge–discharge stability as well. The excellent
electrochemical capability is mainly accounted for the sound composite construction that improves
the effective utilization of electroactive PPy component, accelerates shuttling the charged carriers, and
alleviates the swelling/shrinkage of polymer chains.

Keywords: Graphene; Polypyrrole; Ethylene glycol; Composite; Supercapacitor

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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.., 2013

Deskripsi Fisik

Electrochimica Acta 88 (2013) 519– 525

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

88 (2013)

Subjek

KIMIA KARBON

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

Versi lain/terkait

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