亚胺
动态共价化学
共价键
烟气
碳纳米管
吸附
化学工程
聚合物
材料科学
醛
解吸
共价有机骨架
化学
多孔性
分子
纳米技术
有机化学
组合化学
催化作用
工程类
超分子化学
作者
Mingyue Qiu,Haonan Wu,Yi Huang,Hao Guo,Dan Gao,Pingfa Feng,Lijuan Shi,Qun Yi
出处
期刊:Molecules
[MDPI AG]
日期:2022-09-09
卷期号:27 (18): 5853-5853
被引量:1
标识
DOI:10.3390/molecules27185853
摘要
The design of high-efficiency CO2 adsorbents with low cost, high capacity, and easy desorption is of high significance for reducing carbon emissions, which yet remains a great challenge. This work proposes a facile construction strategy of amino-functional dynamic covalent materials for effective CO2 capture from flue gas. Upon the dynamic imine assembly of N-site rich motif and aldehyde-based spacers, nanospheres and hollow nanotubes with spongy pores were constructed spontaneously at room temperature. A commercial amino-functional molecule tetraethylenepentamine could be facilely introduced into the dynamic covalent materials by virtue of the dynamic nature of imine assembly, thus inducing a high CO2 capacity (1.27 mmol·g-1) from simulated flue gas at 75 °C. This dynamic imine assembly strategy endowed the dynamic covalent materials with facile preparation, low cost, excellent CO2 capacity, and outstanding cyclic stability, providing a mild and controllable approach for the development of competitive CO2 adsorbents.
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