期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 4, 期 39, 页码 15006-15014出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ta06337c
关键词
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资金
- National Basic Research Program of China (973 program) [2015CB932600]
- National Natural Science Foundation of China [21571073, 51302099, 51551205]
- Program for New Century Excellent Talents in University [NCET-13-0227]
- Program for HUST Interdisciplinary Innovation Team [2015ZDTD038]
- Fundamental Research Funds for the Central University
Multi-heteroatom self-doped porous carbon was synthesized via carbonization and activation of amino-acid-rich swim bladders and used for high-performance supercapacitors. The effects of different activation temperatures on the pore structure and composition of the carbon were investigated by TEM, Raman, XPS and nitrogen sorption analyses. With increasing temperature, the pore size broadens and the amount of doped heteroatoms decreases. The obtained materials have a high surface area of up to 3068 m(2) g(-1) with nitrogen, oxygen and sulfur multi-heteroatom doping. Carbon activated at 550 degrees C shows the highest capacitance of 410 F g(-1) and excellent cyclic stability during 10 000 cycles due to the high surface area and multi-heteroatom doping. The outstanding performance makes this material promising for supercapacitors.
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