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Preparation and electrochemical performance of nitrogen-enriched carbon based on melamine formaldehyde resin/graphene oxide composites

Jiahuan Du (Key Laboratory of Chemical Engineering Process & Technology for High-efficiency Conversion, College of Heilongjiang Province, School of Chemistry and Materials Science, Heilongjiang University, Harbin, China)
Qiang Li (Key Laboratory of Chemical Engineering Process ＆Technology for High-efficiency Conversion, College of Heilongjiang Province; School of Chemistry and Materials Science, Heilongjiang University, Harbin, China)
Chuanli Qin (Key Laboratory of Chemical Engineering Process＆Technology for High-efficiency Conversion, College of Heilongjiang Province; School of Chemistry and Materials Science, Heilongjiang University, Harbin, China)
Xugang Zhang (Department of Adhesives, Heilongjiang Institute of Petrochemistry, Harbin, China)
Zheng Jin (Key Laboratory of Chemical Engineering Process ＆Technology for High-efficiency Conversion, College of Heilongjiang Province; School of Chemistry and Materials Science, Heilongjiang University, Harbin, China)
Xuduo Bai (Key Laboratory of Chemical Engineering Process ＆Technology for High-efficiency Conversion, College of Heilongjiang Province; School of Chemistry and Materials Science, Heilongjiang University, Harbin, China)

Pigment & Resin Technology

ISSN: 0369-9420

Article publication date: 6 July 2015

359

Abstract

Purpose

The purpose of this paper is to develop nitrogen-enriched carbon (NC) with high conductivity and specific capacitance as electrode materials for supercapacitors.

Design/methodology/approach

Graphene oxide (GO) was synthesized by the modified Hummers–Offeman method. NC was synthesized by carbonization of melamine formaldehyde resin/graphene oxide (MF/GO) composites. Supercapacitors based on Ni(OH)2/Co(OH)2 composites as the positive electrode and NC as the negative electrode were assembled. The electrochemical performances of NC and supercapacitors are studied.

Findings

The results show that obtained NC has high nitrogen content. Compared to NC-GO0 without GO, high conductivity and specific capacitance were obtained for NC with GO due to the introduction of layered GO. The presence of pseudocapacitive interactions between potassium cations and the nitrogen atoms of NC was also proposed. When the weight ratio of GO to MF is 0.013:1, the obtained NC-GO3 has the highest specific capacitance of 154.07 F/g due to GO and its highest content of N-6. When the P of the asymmetric supercapacitor with NC-GO3 as the negative electrode is 1,326.70 W/kg, its Cps and Ep are still 23.84 F/g and 8.48 Wh/Kg, respectively. There is only 4.4 per cent decay in Cps of the supercapacitor over 1,000 cycles.

Research limitations/implications

NC is a suitable electrode material for supercapacitors. The supercapacitors can be used in the field of automobiles and can solve the problems of energy shortage and environmental pollutions.

Originality/value

NC based on MF/GO composites with high nitrogen content and conductivity was novel and its electrochemical properties were excellent.

Keywords

Acknowledgements

The authors gratefully acknowledge the financial assistance received from Natural Science Foundation Committee of China (Grant Number 21206034, 21372067, 51373049), and Outstanding Youth Science Foundation Committee of Heilongjiang University (Grant Number JCL201202).

Citation

Du, J., Li, Q., Qin, C., Zhang, X., Jin, Z. and Bai, X. (2015), "Preparation and electrochemical performance of nitrogen-enriched carbon based on melamine formaldehyde resin/graphene oxide composites", Pigment & Resin Technology, Vol. 44 No. 4, pp. 205-213. https://doi.org/10.1108/PRT-01-2015-0012

Publisher

:

Emerald Group Publishing Limited

Copyright © 2015, Emerald Group Publishing Limited

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