Herbert Gleiter Institute of Nanoscience, Nanjing University of Science and Technology , 200 Xiaolingwei, Nanjing 210094, China.
Supermolecules Group, International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS) , 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan.
ACS Appl Mater Interfaces. 2017 Dec 27;9(51):44458-44465. doi: 10.1021/acsami.7b13277. Epub 2017 Dec 15.
Fullerene C microbelts were fabricated using the liquid-liquid interfacial precipitation method and converted into quasi 2D mesoporous carbon microbelts by heat treatment at elevated temperatures of 900 and 2000 °C. The carbon microbelts obtained by heat treatment of fullerene C microbelts at 900 °C showed excellent electrochemical supercapacitive performance, exhibiting high specific capacitances ca. 360 F g (at 5 mV s) and 290 F g (at 1 A g) because of the enhanced surface area and the robust mesoporous framework structure. Additionally, the heat-treated carbon microbelt showed good rate performance, retaining 49% of capacitance at a high scan rate of 10 A g. The carbon belts exhibit super cyclic stability. Capacity loss was not observed even after 10 000 charge/discharge cycles. These results demonstrate that the quasi 2D mesoporous carbon microbelts derived from a π-electron-rich carbon source, fullerene C crystals, could be used as a new candidate material for electrochemical supercapacitor applications.
富勒烯 C 微带采用液-液界面沉淀法制备，并通过在 900 和 2000°C 的高温下热处理转化为准 2D 介孔碳微带。在 900°C 下热处理富勒烯 C 微带得到的碳微带表现出优异的电化学超级电容性能，由于增强的比表面积和坚固的介孔框架结构，其比电容高达约 360 F g（在 5 mV s 时）和 290 F g（在 1 A g 时）。此外，热处理后的碳微带具有良好的倍率性能，在高扫描速率 10 A g 时仍保持 49%的电容。这些碳带表现出超循环稳定性。即使经过 10000 次充放电循环，容量损失也不明显。这些结果表明，源自富π电子碳源富勒烯 C 晶体的准 2D 介孔碳微带可用作电化学超级电容器应用的新型候选材料。
