期刊
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
卷 44, 期 13, 页码 10946-10952出版社
WILEY
DOI: 10.1002/er.5672
关键词
CNTs; polymer nanotubes; steam activation; supercapacitor
资金
- Graduate Research Innovation Project of Xinjiang [XJ2019G013]
- General Program of National Natural Science Foundation of China [51672235]
- Youth Program of National Natural Science Foundation of China [51902277]
- National Ten Thousand Talents Program of China [2017]
How to prepare porous carbons with appropriate structure for supercapacitors is a big challenge. In general, activation is the simplest way to obtain porous carbons. Porous bamboo-like CNTs were fabricated by simple activating sulfonated polymer nanotubes with steam at 800 degrees C. Compared with the un-activated one, activated carbon nanotubes (ACNTs) have good tubular structure, larger specific surface area and rich porosity thanks to the protection of steam during the activation. The ACNTs electrode for supercapacitors displays a specific capacity of 276 F g(-1)at 1 A g(-1). When assembling ACNTs into a symmetrical supercapacitor, the specific capacity of the device can retain 98% after 10 000 cycles, and this result shows the great application prospect of ACNTs for supercapacitors.
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