Considering cost and environmental protection, the harmful aquatic plant altemanthera philoxeroides derived carbon material with super high specific surface area (2895 m² g^-1) is an ideal electrode material for supercapacitor. The structure and composition of these carbon materials were characterized by SEM, EDS, XPS and BET measurements. The obtained material exhibits a maximum specific capacitance of 275 F g^-1 at 0.5 A g^-1 and retains a capacitance of 210 F g^-1 even at 50 A g^-1. In addition, it also shows excellent capacity retention of 5000 cycles at 10 A g^-1.

中文翻译：

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源自有害水生植物的活性炭，用于高稳定性超级电容器

考虑到成本和环境保护，具有超高比表面积（2895 m ² g ^-1）的有害水生植物水飞蓟素衍生的碳材料是超级电容器的理想电极材料。这些碳材料的结构和组成通过SEM，EDS，XPS和BET测量来表征。将所得到的材料表现出的275 F G的最大比电容^-1在0.5 A克^-1和保留的210 F G的电容^-1甚至在50 A G ^-1。此外，它还显示出在10 A g ^-1下5000个循环的出色容量保持能力。