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Capacitive Properties of Polyaniline/Nickel Hydroxide Composites Prepared by Using 4-Amino Thiophenol as the Structure Directing Agent
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Capacitive Properties of Polyaniline/Nickel Hydroxide Composites Prepared by Using 4-Amino Thiophenol as the Structure Directing Agent

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Abstract:

Polyaniline/Nickel hydroxide composites were successfully obtained on the Au substrate pretreated by 4-ATP. They were characterized by fourier transform infrared (FT-IR) spectroscopy and scan electron microscopy (SEM). The capacitance performance of PANI/Ni (OH)2 composites were studied by cyclic voltammetry and galvanostatic charge/discharge. The specific capacitance of Polyaniline/Nickel hydroxide composite is up to 310 F/g at the current density of 1 mA/cm2 in 1.0 mol/L Na2SO4 solution. Electrode mass increases from 0.14 mg to 0.21 mg, specific capacitance decreases 7.7%. A symmetric capacitor was assembled by using PANI/Ni (OH)2 as both of the positive and negative electrodes and 1 M Na2SO4 as the electrolyte. It displays a energy density of 6.0 Wh kg-1 at the power density of 3125 W kg-1, which is much higher than symmetric capacitor assembled by PANI-PANI (4.9 Wh kg-1) and Ni (OH)2-Ni (OH)2 (3.5 Wh kg-1).

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Periodical:

Applied Mechanics and Materials (Volumes 490-491)

Pages:

3-7

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.490-491.3

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Online since:

January 2014

Authors:

Yu Qiu Huo, Chang Hong Li

Keywords:

4-amino Thiophenol, Capacitive Properties, Nickle Hydroxide, Polyaniline

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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