吸附
乙炔
光致变色
化学
多孔介质
溶剂
二氧化碳
材料科学
多孔性
纳米技术
化学工程
电子转移
光化学
物理化学
有机化学
工程类
作者
Li‐Zhen Cai,Zizhu Yao,Shujuan Lin,Ming‐Sheng Wang,Guo‐Cong Guo
标识
DOI:10.1002/anie.202105491
摘要
Abstract Similarities in sizes, shapes, and physical properties between carbon dioxide (CO 2 ) and acetylene (C 2 H 2 ) make it a great challenge to separate the major impurity CO 2 from products in C 2 H 2 production. The use of porous materials is an appealing path to replace current very costly and energy‐consuming technologies, such as solvent extraction and cryogenic distillation; however, high CO 2 /C 2 H 2 uptake ratio with minor adsorption of C 2 H 2 at standard pressure was only unexpectedly observed in scarce examples in recent years although the related research started early at 1950s, and general design strategies to realize this aim are still absent. This work has successfully developed an efficient PIET strategy and obtained the second highest CO 2 /C 2 H 2 adsorption ratio for porous materials in a proof‐of‐concept MOF with a photochromism‐active bipyridinium zwitterion. An unprecedented photocontrollable gate effect, owing to change of interannular dihedral after photoinduced generation of radical species, was also observed for the first time. These findings will inspire design and synthesis of porous materials for high efficient gas adsorption and separation.
科研通智能强力驱动
Strongly Powered by AbleSci AI