Monomer-dependent synthesis of secondary amine-linked triazine-based two-dimensional polymers nanosheets

• 作者: Chaoqun Niu Chengbing Yu Imran Shakir Mohamed F.Aly Aboud Ranran Zhao Yuxi Xu
• 来源期刊: 中国科学:化学（英文版）
• 年，卷（期）: 2020,（7）
• 页码范围: 966-972
• 页数: 7页
• 语种: 英文

摘要

Expanding the structural diversity of crystalline two-dimensional polymers (2DPs) is highly desired but remains a considerable challenge.Herein we report the first synthesis of novel crystalline secondary amine-linked triazine-based 2DPs (SAT-2DPs) by using benzidine or 4,4"-diamino-p-terphenyl and cyanuric chloride under solvothermal conditions.We find the structures of diamine-based monomers play a crucial role in deciding whether the synthesized material is crystalline 2DPs nanosheets or amorphous nanoparticles,which is unexpected and provides an important understanding of the 2D polymerization mechanism.The obtained SAT-2DPs not only show a lateral size of micrometers and an ultrathin thickness of a few nanometers,but also demonstrate high crystallinity with a unique ABC stacking configuration,excellent solvent dispersibility and superior thermal stability.In addition,the resultant SAT-2DPs are used to guide uniform lithium-ion deposition due to their abundant nitrogen atoms and ordered open channels.The assembled asymmetric coin cells (Li|Cu) with SAT-2DPs realize the average coulombic efficient up to 99.3％ during discharge-charge cycles.This work provides valuable insights into the synthesis of new 2DPs for various applications.

作者信息

序号	姓名	单位	发文数	被引次数	H指数	G指数
1	Ranran Zhao		1	0	0.0	0.0
2	Chaoqun Niu		1	0	0.0	0.0
3	Mohamed F.Aly Aboud		1	0	0.0	0.0
4	Imran Shakir		1	0	0.0	0.0
5	Chengbing Yu		1	0	0.0	0.0
6	Yuxi Xu		1	0	0.0	0.0