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Oxygen-sulfur-phosphorus co-doped activated carbon derived from lotus stamens for high-performance supercapacitors
Chinese Journal of Analytical Chemistry ( IF 1.2 ) Pub Date : 2021-09-17 , DOI: 10.1016/j.cjac.2021.06.001
Xiang-Fei CHEN 1 , Shi-Yun WAN 1 , Jian-Hua DING 1 , Tian-Xiang JIN 1 , Li-Min LU 2 , Yong QIAN 1
Affiliation  

Lotus stamen, as a traditional Chinese medicine, is rich in oxygen, sulfur, and phosphorus. In this work, we successfully developed oxygen-sulfur-phosphorus co-doped activated carbon (LSAC) from lotus stamens via a facile activation process. The as-prepared activated carbon has a large specific surface area of 1026.9 m2g−1, abundant heteroatom dopants, and a hierarchical micro/meso/macroporous structure. Thanks to the above advantages, the LSAC electrode exhibits a high specific capacitance of 322.8 F g−1 at 0.5 A g−1 and remarkable cyclic stability, maintaining 90.2% of its initial capacitance after 10000 cycles. Moreover, the symmetric supercapacitor assembled from LSAC electrodes displays an excellent energy density of 24.1 W h kg−1 at a power density of 490 W kg−1.



中文翻译:

用于高性能超级电容器的来自莲花雄蕊的氧-硫-磷共掺杂活性炭

莲心作为一种中药,含有丰富的氧、硫、磷。在这项工作中,我们通过简单的活化过程从莲花雄蕊中成功开发了氧-硫-磷共掺杂活性炭(LSAC)。所制备的活性炭具有1026.9 m 2 g -1的大比表面积、丰富的杂原子掺杂剂和分级微/中/大孔结构。由于上述优点,LSAC 电极在 0.5 A g -1 时表现出 322.8 F g -1的高比电容和显着的循环稳定性,在 10000 次循环后保持其初始电容的 90.2%。此外,由 LSAC 电极组装的对称超级电容器显示出 24.1 W h kg 的优异能量密度-1功率密度为 490 W kg -1

更新日期:2021-10-29
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