电化学
锂(药物)
材料科学
离子
电极
箔法
吡啶
结晶学
无机化学
化学
物理化学
有机化学
复合材料
医学
内分泌学
作者
Fuxing Zhao,Ning Wang,Kun Wang,Xiaodong Li,Ze Yang,Wenyan Si,Quanhu Sun,Changshui Huang
出处
期刊:2D materials
[IOP Publishing]
日期:2021-09-30
卷期号:8 (4): 044013-044013
被引量:5
标识
DOI:10.1088/2053-1583/ac2592
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 sp2 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.
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