Carbon Letters ( IF 5.5 ) Pub Date : 2020-10-03 , DOI: 10.1007/s42823-020-00190-6 Stella Vargheese , Muthu Dinesh , K. V. Kavya , Dhanaprabhu Pattappan , Ramasamy Thangavelu Rajendra Kumar , Yuvaraj Haldorai
Doped porous carbon materials have attracted great interest owing to their excellent electrochemical performance toward energy storage applications. In this report, we described the synthesis of nitrogen-doped porous carbon (N-PC) via carbonization of a triazine-based covalent organic framework (COF) synthesized by Friedel–Crafts reaction. The as-synthesized COF and N-PC were confirmed by X-ray diffraction. The N-PC exhibited many merits including high surface area (711 m2 g−1), porosity, uniform pore size, and surface wettability due to the heteroatom-containing lone pair of electron. The N-PC showed a high specific capacitance of 112 F g−1 at a current density of 1.0 A g−1 and excellent cyclic stability with 10.6% capacitance loss after 5000 cycles at a current density of 2.0 A g−1. These results revealed that the COF materials are desirable for future research on energy storage devices.
中文翻译:
超级电容器电极的基于三嗪的二维共价有机骨架衍生的氮掺杂多孔碳
掺杂的多孔碳材料因其在储能应用方面的出色电化学性能而引起了人们的极大兴趣。在本报告中,我们描述了通过Friedel-Crafts反应合成的三嗪基共价有机骨架(COF)的碳化来合成氮掺杂多孔碳(N-PC)。通过X射线衍射确认了合成后的COF和N-PC。由于含杂原子的孤对电子,N-PC具有许多优点,包括高表面积(711 m 2 g -1),孔隙率,均匀的孔径和表面润湿性。N-PC在电流密度为1.0 A g -1时显示出112 F g -1的高比电容优异的循环稳定性,在电流密度为2.0 A g -1的情况下经过5000次循环后,电容损耗为10.6%。这些结果表明,COF材料对于能量存储装置的未来研究是理想的。