Template Induced Fabrication of Nitrogen Doped Carbon Sheets as Electrode Materials in Supercapacitors

Authors

Tao HUANG, School of Chemistry and chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;
Guang-zhi TAO, School of Chemistry and chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;
Chong-qing YANG, School of Chemistry and chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;
Deng LU, School of Chemistry and chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;
Lie MA, School of Chemistry and chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;
Dong-qing WU, School of Chemistry and chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;Follow

Corresponding Author

Dong-qing WU(wudongqing@sjtu.edu.cn)

Abstract

Due to the good electrical conductivity, high specific surface area, and excellent chemical/mechanical stability, carbon nanomaterials with two-dimensional morphology have gradually become the hot topic of the research on supercapacitors. Herein, we report for the first time the fabrication of nitrogen doped carbon sheets (NCSs). In our approach, the sheet-like magnisum aluminum (MgAl) layered double hydroxide was used as the hard template, which was mixed with o-phenylene diamine and iron chloride. The following thermal treatment could render the polymerization and carbonization of o-phenylene diamine. The NCSs with ordered hexagonal architectures were formed by final etching process of the thermally treated mixture. The morphology, structure, graphitic degree, nitrogen content and surface area of the as-prepared NCSs could be adjusted by the temperatures of the thermal treatment. More importantly, the NCSs exhibited outstanding electrochemical performances as the electrode materials in supercapacitors. Among the NCSs, the sample obtained from 600 ^oC (NCS-600) achieved a capacity of 290.0 F·g^-1 at a current density of 0.5 A·g^-1. After 10,000 cycles at 1 A·g^-1, the NCS-600 still retained 83% of its initial capacity, indicating high cycling stability.

Graphical Abstract

Keywords

two-dimensional materials, nanocarbon materials, nitrogen doped carbon sheets, template induced method, supercapacitor

DOI Link

https://doi.org/10.13208/j.electrochem.170345

Publication Date

2017-10-28

Online Available Date

2017-05-16

Revised Date

2017-05-14

Received Date

2017-04-12

Recommended Citation

Tao HUANG, Guang-zhi TAO, Chong-qing YANG, Deng LU, Lie MA, Dong-qing WU. Template Induced Fabrication of Nitrogen Doped Carbon Sheets as Electrode Materials in Supercapacitors[J]. Journal of Electrochemistry, 2017 , 23(5): 604-609.
DOI: 10.13208/j.electrochem.170345
Available at: https://jelectrochem.xmu.edu.cn/journal/vol23/iss5/8