e-journal

Polypyrrole/carbon aerogel composite materials for supercapacitor

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a b s t r a c t
Polypyrrole (PPy)/carbon aerogel (CA) composite materials with different PPy contents are prepared
by chemical oxidation polymerization through ultrasound irradiation and are used as active electrode
material for supercapacitor. The morphology of PPy/CA composite is examined by scanning electron
microscopy (SEM) and transmission electron microscopy (TEM). The results show that PPy is deposited
onto the surface of CA. As evidenced by cyclic voltammetry, galvanostatic charge/discharge test and
EIS measurements, PPy/CA composites show superior capacitive performances to CA, moreover, the
results based on cyclic voltammograms show that the composite material has a high specific capacitance
of 433 F g−1, while the capacitance of CA electrode is only 174 F g−1. Although the supercapacitor
used PPy/CA as active electrode material has an initial capacitance loss due to the instability of PPy, the specific capacitance after 500 cycles stabilizes nearly at a fixed value.
Keywords: Carbon aerogel, Polypyrrole, Composite, Supercapacitor

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Informasi Detail

Judul Seri

Journal of Power Sources

No. Panggil

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Penerbit

: Elsevier B.V. All rights reserved., 2010

Deskripsi Fisik

Journal of Power Sources 195 (2010) 6964–6969

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 KARBON

Info Detail Spesifik

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Pernyataan Tanggungjawab

yuli/agus

Versi lain/terkait

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