Preparation and Capacitance Performance of Graphene/PANI/MnO<sub>2</sub> Composite

化学工业与工程

Chemcial Industry and Engineering

2016, Vol. 33

Issue (2) :58-64 DOI: 10.13353/j.issn.1004.9533.20141017

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Preparation and Capacitance Performance of Graphene/PANI/MnO₂ Composite

Zhang Jingsai¹, Du Ping¹, Zhang Jing²

1. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;
2. Tianjin Institute of Power Sources, Tianjin 300381, China

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Abstract

A ternary composite of graphene/PANI/MnO₂ was successfully prepared by π-π conjugate adsorption method followed by liquid-phase coprecipitation method. The effect of PANI to ternary composite was discussed. SEM and XRD results show that the addition of suitable amount of PANI can effectively improve the dispersion of MnO₂, decrease the particle size and increase the porosity. Cyclic voltammetry and AC impedance method show that ternary composite with suitable amount of PANI has a higher specific capacitance value and a very good cyclic stability, even after 3 000 cycle, the capacitance is still 92.7% of the original value.

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	Zhang Jingsai
	Du Ping
	Zhang Jing

Keywords： graphene； PANI； MnO₂； super capacitors

Received 2014-03-04;

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Zhang Jingsai, Du Ping, Zhang Jing.Preparation and Capacitance Performance of Graphene/PANI/MnO₂ Composite[J] Chemcial Industry and Engineering, 2016,V33(2): 58-64

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