N, Se doped flower-shaped hollow carbon spheres to enhance performance in supercapacitor

Autor:	Ying Meng, Menfa Qian, Wusi Zhang, Shibin Lu, Yuan Ma, Haisheng Lu, Shaowei Jin, Guang Li, Changzheng Xie, Yaodong Wu
Rok vydání:	2021
Předmět:	Supercapacitor Materials science Mechanical Engineering Doping chemistry.chemical_element Nanotechnology Condensed Matter Physics Capacitance Energy storage chemistry Mechanics of Materials Constant current General Materials Science Selectivity Porosity Carbon
Zdroj:	Materials Letters. 304:130623
ISSN:	0167-577X
DOI:	10.1016/j.matlet.2021.130623
Popis:	Designing energy storage devices assembled with precious metal-free active materials is the key to developing a low-carbon economy and sustainable energy supply. Therefore, we take Se as the guest and porous nitrogen-modified flower-shaped hollow carbon spheres (NFHC) as the main body to form Se-NFHC. The performance as an active material in supercapacitors is explored. The results show that the specific capacitance of the material reaches 774 F g−1, and after 6000 constant current charge–discharge tests, it can still maintain 95.4% specific capacitance, which provides selectivity for materials in the field of energy storage.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1bca0d5c7fa3355eeef5efbb8d573c48 https://doi.org/10.1016/j.matlet.2021.130623 Zobrazit plný text záznamu Full Text from ScienceDirect