摘要
将碳纳米管作为载体,通过1,3,5-均苯三甲醛与3,8-二氨基-6-苯基菲啶在乙酸存在下的可逆席夫碱反应,合成了一种碳纳米管支撑的共价有机骨架复合材料(COF@CNT)。并用1,3-丙磺酸内酯将其功能化,进一步得到两性离子功能化的共价有机骨架复合材料(ZW-COF@CNT)。将该复合材料作为正极的硫宿主材料组装到锂硫电池中,研究其对电化学性能的影响。本实验涉及抽滤、真空干燥、纽扣电池组装等操作过程,也包括材料表征、电池性能测试等分析过程。
A covalent organic framework composite material supported by carbon nanotubes(COF@CNT)was prepared by reversible Schiff-base reaction of 1,3,5-benzenetricarboxaldehyde and 3,8-diamino-6-phenylphenphenyridine in the presence of acetic acid using carbon nanotubes as a support material.And the zwitterionic functionalized covalent organic framework composite materials(ZW-COF@CNT)were further obtained by using 1,3-propanesultone as functional reagent.ZW-COF@CNT was then assembled into a lithium-sulfur battery as a positive electrode sulfur host material,and its effect on electrochemical performance was studied.This comprehensive innovation experiment involved the operation processes of extraction filtration,vacuum drying,button battery assembly,as well as the analysis processes of material characterization and battery performance testing.
作者
杨延琴
古国贤
韩禄
YANG Yan-qin;GU Guo-xian;HAN Lu(School of Chemical Engineering,Hebei University of Technology,Tianjin 300130,China)
出处
《广州化工》
CAS
2024年第1期227-231,共5页
GuangZhou Chemical Industry
基金
2021年度河北工业大学本科教育教学改革研究与实践项目(202101029)。
关键词
综合创新实验
共价有机骨架
锂硫电池
穿梭效应
comprehensive innovation experiment
covalent organic framework
lithium-sulfur battery
shuttle effect
