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An asymmetric supercapacitor using RuO2/TiO2 nanotube composite and activated carbon electrodes

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Abstract
We reported an asymmetric supercapacitor technology where RuO2/TiO2 nanotube composite was used as positive electrode and the activated carbon as negative electrode in 1 mol/L KOH electrolyte solution. The electrochemical capacitance performance of the asymmetric supercapacitor was tested by cyclic voltammetry, electrochemical impedance spectroscopy and galvanostatic charge-discharge tests. The
results show that the asymmetric supercapacitor has electrochemical capacitance performance within potential range 0–1.4V. A power density 1207 W/kg was obtained with an energy density of 5.7Wh/kg at a charge–discharge current density of 120 mA/cm2. The supercapacitor also exhibits a good cycling performance and keep 90% of initial capacity over 1000 cycles.
Keywords: RuO2/TiO2 nanotube; Active carbon; Asymmetric supercapacitor

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Informasi Detail

Judul Seri

Electrochimica Acta

No. Panggil

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Penerbit

: Elsevier Ltd. All rights reserved., 2005

Deskripsi Fisik

Electrochimica Acta 50 (2005) 5641–5646

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

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