论文
Nitrogen substituted graphdiyne as electrode for high-performance lithium-ion batteries and capacitors
第一作者: Zhao, FH (Zhao, Fuhua); Wang, N (Wang, Ning); Wang, K (Wang, Kun); Li, XD (Li, Xiaodong); Yang, Z (Yang, Ze); Si, WY (Si, Wenyan); Sun, QH (Sun, Quanhu); Huang, CS (Huang, Changshui);
联系作者: Zhao, FH (Zhao, Fuhua); Wang, N (Wang, Ning); Wang, K (Wang, Kun); Li, XD (Li, Xiaodong); Yang, Z (Yang, Ze); Si, WY (Si, Wenyan); Sun, QH (Sun, Quanhu); Huang, CS (Huang, Changshui);
发表年度: 2021
期: 4
卷: 8
页: -
摘要: Herein, pyridinic nitrogen substituted graphdiyne (PyN-GDY) is directly prepared on the surface of copper foil via a facile Glaser-Hay reaction. PyN-GDY comprises GDY-like hybridized sp(2) and sp-carbon structures, meanwhile one of the C atom in the benzene ring is replaced by a pyridinic-N atom. Hence, the lithium (Li) atoms intercalated into the PyN-GDY framework can be stabilized due to the interaction between the Li atoms and the pyridinic-N, which can be further confirmed through theoretical analysis on the binding energy of complex containing Li and PyN-GDY. Moreover, the different arrangement of monomers during the preparation process formed plenty of hierarchical pores in the 2D plane, which would shorten the diffusion path and facilitate the delivery of Li-ions. Based on the unique pyridine N doping structure, PyN-GDY exhibits outstanding electrochemical performance with superior cycling stability when applied as electrode in Li-ion half batteries and Li-ion capacitors.
刊物名称: 2D MATERIALS
影响因子: 7.343
全文链接: https://iopscience.iop.org/article/10.1088/2053-1583/ac2592