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Updated: Jan 12, 2026

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用于二氧化碳升级的含键供体离子共价有机框架的合成

Tianye Gao¹, Fengshuang Xu¹, Xin Tao¹

¹Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China.

Journal of colloid and interface science

|October 30, 2025

概括

新的共价有机框架 (COF) 在温和条件下催化二氧化碳 (CO2) 循环添加与环氧化物. 离子COF (iCOF) 显示出卓越的性能,在没有溶剂或辅助催化剂的情况下获得高产量.

科学领域:

材料科学材料科学材料科学
催化剂是一种催化剂.
绿色化学绿色化学

背景情况:

传统的二氧化碳循环添加与环氧化物的催化剂通常需要恶劣的条件或辅助催化剂.
键供体 (HBD) 组对于催化活性至关重要,但可以通过反应参数来限制.

研究的目的:

为在温和条件下使用环氧化物进行二氧化碳循环添加开发高效和可回收的共价有机框架 (COF).
研究含有HBD的COF及其离子对应物 (HBD-iCOF) 的催化性能.

主要方法:

通过溶热法合成含有HBD的COF.
合成后的修改以产生含有HBD的离子COF (HBD-iCOF).
在无溶剂,温和条件下,用环氧化物对二氧化碳循环添加的催化试验.
密度函数理论 (DFT) 和机械见解的动力学研究.

主要成果:

无论是HBD-COF还是HBD-iCOF都有效地在没有溶剂或辅助催化剂的情况下催化了循环添加反应.
与HBD-COF相比,HBD-iCOF表现出更高的催化活性 (95.8 ± 0.5%的收益率).
DFT和动力学研究表明,由于协同激活和π-π/键相互作用,HBD-iCOF的二氧化碳亲和力增强,反应能量障碍降低.

结论:

在绿色条件下,HBD-iCOF是二氧化碳循环添加与环氧化物的高效催化剂.
提高HBD-iCOF的性能归因于离子组件的协同作用和改善的CO2亲和力.
这些发现为可持续的二氧化碳利用提供了有希望的途径.

关键词:

二氧化碳的升级是二氧化碳的升级.循环碳酸盐是一种循环碳酸盐.提供键的供体.离子共价有机框架离子共价有机框架

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