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NH3-activated polyaniline for use as a high performance electrode material in supercapacitors

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Abstract.
A simple method for activating polyaniline (PANI) using NH3 for the synthesis of high performance
electrode materials in supercapacitors is described. The PANI is activated at various temperatures
(750–1050 ◦C) with a mixed stream of NH3 and N2. Because of the corrosive properties of NH3, the surface
area of PANI (46.6 m2 g−1) is significantly increased up to 1719.8 m2 g−1. Large amounts of surface nitrogen
functional groups are maintained in pyrrolic and pyridinic states, even after a heat treatment, which
is favorable for pseudocapacitor reactions. As evidenced by electrochemical analysis, NH3 activated PANI
exhibits a high specific capacitance (174.8 F g−1) and fast charging/discharging characteristics due to its
high specific surface area and desirable surface functional groups. Results suggest that it has considerable
potential for use in application to PANI based composites as a high performance electrode material in
supercapacitors.

Keywords: Supercapacitor; Polyaniline; Ammonia activation; Electrode material

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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.., 2012

Deskripsi Fisik

Electrochimica Acta 78 (2012) 340– 346

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

78 (2012)

Subjek

PSEUDOKAPASITOR

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

Versi lain/terkait

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