微型多孔材料
材料科学
化学工程
沸石咪唑盐骨架
纳米晶
聚合物
咪唑酯
多孔性
纳米晶材料
锌
金属有机骨架
纳米技术
有机化学
化学
冶金
复合材料
吸附
工程类
作者
Kyoungil Cho,Lucas J. Andrew,Mark J. MacLachlan
标识
DOI:10.1002/anie.202300960
摘要
Abstract Zeolitic imidazolate framework (ZIF‐8) nanocrystals were uniformly grown on the surface of cellulose nanocrystals (CNCs) to give a hybrid material, ZIF@CNCs. By varying the stoichiometry of the components, it was possible to control the size of the ZIF‐8 crystals grown on the CNC surface. Optimized ZIF@CNC ( ZIF@CNC‐2 ) was used as a template to synthesize a microporous organic polymer (MOP), ZIF@MOP@CNC . After etching the ZIF‐8 with 6 M HCl solution, a MOP material with encapsulated CNCs ( MOP@CNC ) was formed. Zinc coordination into the porphyrin unit of the MOP yielded the ship‐in‐a‐bottle structure, Zn MOP@CNC , comprised of CNCs encapsulated within the Zn‐MOP. In comparison to ZIF@CNC‐2 , Zn MOP@CNC showed better catalytic activity and chemical stability for CO 2 fixation, converting epichlorohydrin to chloroethylene carbonate. This work demonstrates a novel approach to create porous materials through CNC templating.
科研通智能强力驱动
Strongly Powered by AbleSci AI