Review
Chemistry, Multidisciplinary
Hao Zhang, Lan-Lan Lou, Kai Yu, Shuangxi Liu
Summary: Asymmetric catalysis is essential due to the increasing demand for optically pure substances. Metal-organic frameworks (MOFs) and covalent organic frameworks (COFs) show great potential for heterogeneous asymmetric catalysis. The unique properties of MOFs and COFs make them highly active and enantioselective for a wide range of asymmetric catalytic organic transformations.
Article
Chemistry, Multidisciplinary
Bang Hou, Shi Yang, Kuiwei Yang, Xing Han, Xianhui Tang, Yan Liu, Jianwen Jiang, Yong Cui
Summary: Three-dimensional covalent organic frameworks (COFs) with well-defined porous channels have been shown to induce chiral molecular catalysts from non-enantioselective to highly enantioselective in catalyzing organic transformations. By condensing compounds derived from enantiopure BINOL, chiral COFs with highly interpenetrated diamondoid frameworks were prepared. The COF catalyst provides preferential secondary interactions between the substrate and framework to induce enantioselectivities that are not achievable in homogeneous systems.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Review
Chemistry, Applied
Hai-Yang Cheng, Tao Wang
Summary: Covalent organic frameworks (COFs) built upon dynamic covalent chemistry have great potential in catalytic organic synthesis, with researchers exploring their applications in various reactions. While COFs as heterogeneous organic catalysts bring benefits, they also present new challenges that require further research and discussion.
ADVANCED SYNTHESIS & CATALYSIS
(2021)
Review
Chemistry, Inorganic & Nuclear
Minghui Chen, Hongrui Li, Chenxi Liu, Jiayi Liu, Yaqing Feng, Andrew G. H. Wee, Bao Zhang
Summary: COFs are a type of structurally ordered porous materials constructed with light atoms through covalent bonds, with recent interest in tetrapyrrolic macrocycle-based COFs using porphyrin and its analogs as building blocks, showing potential applications in diverse fields.
COORDINATION CHEMISTRY REVIEWS
(2021)
Article
Chemistry, Physical
Chaonan Jin, Ning Li, En Lin, Xuepeng Chen, Ting Wang, Yan Wang, Mingfang Yang, Wansheng Liu, Jiangyue Yu, Zhenjie Zhang, Yao Chen
Summary: This study developed a photoenzymatic platform for asymmetric catalysis by immobilizing wheat germ lipase (WGL) onto rationally designed photocatalytic porphyrinic covalent organic frameworks (COFs). The WGL@COFs photobiocatalysts demonstrated high enzymatic activity and good operational stability, and exhibited excellent performance for an enantioselective Mannich reaction under visible light irradiation. This work provides a general and efficient strategy for fabricating photobiocatalysts that enable highly efficient photoenzymatic asymmetric catalysis using COFs as photocatalytic platforms for enzyme immobilization.
Article
Materials Science, Multidisciplinary
Syed Shoaib Ahmad Shah, Muhammad Sufyan Javed, Tayyaba Najam, Muhammad Altaf Nazir, Aziz ur Rehman, Abdul Rauf, Manzar Sohail, Francis Verpoort, Shu-Juan Bao
Summary: This article provides a comprehensive explanation of the designed fabrication of COFs for heterogeneous catalysis and discusses the advantageous features of COFs as catalysts. It also highlights the active sites in COFs and presents future perspectives and challenges.
Article
Chemistry, Multidisciplinary
Ge Yang, Wenwen Shi, Yunyang Qian, Xiao Zheng, Zheng Meng, Hai-Long Jiang
Summary: This study successfully achieved heterogeneous enantioselective catalysis by modulating the chiral microenvironment around Lewis acid sites in solid-phase catalysts. Chiral metal-organic frameworks (MOFs) were synthesized by anchoring chiral hydroxylated molecules onto Zr-oxo clusters in achiral PCN-222(Cu). The resulting chiral MOFs exhibited regulated enantioselectivity of up to 83% ee in the asymmetric ring-opening of cyclohexene oxide. The chiral molecules created a multilevel microenvironment around the catalytic sites in the MOF, which played crucial roles and synergistically promoted chiral catalysis.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Kolleboyina Jayaramulu, Michael Horn, Andreas Schneemann, Haneesh Saini, Aristides Bakandritsos, Vaclav Ranc, Martin Petr, Vitalie Stavila, Chandrabhas Narayana, Blazej Scheibe, Stepan Kment, Michal Otyepka, Nunzio Motta, Deepak Dubal, Radek Zboril, Roland A. Fischer
Summary: The study demonstrates the covalent attachment of an amine functionalized metal-organic framework to carboxylate functionalized graphene, resulting in a hybrid material with high capacitance and cycling stability. An asymmetric supercapacitor was successfully constructed using this hybrid material, showing comparable performance to commercial devices such as Pb-acid and Ni/MH batteries. The amide linkage plays a key role in forming a p-conjugated structure, facilitating charge transfer and enhancing capacitance and cycling stability.
ADVANCED MATERIALS
(2021)
Review
Chemistry, Multidisciplinary
Xinyu Guan, Fengqian Chen, Shilun Qiu, Qianrong Fang
Summary: Three-dimensional covalent organic frameworks (3D COFs) with spatially periodic networks have significant advantages over their 2D counterparts, such as larger specific surface areas, interconnected channels, and more exposed active sites. However, the research on these materials faces challenges in crystallization and stability, which need to be addressed for practical applications. In this Minireview, strategies for preparing functional 3D COFs, including crystallization techniques and functionalization methods, are summarized. Applications of these functional materials in adsorption, separation, catalysis, fluorescence, sensing, and batteries are presented. Finally, the future challenges and perspectives for the development of 3D COFs are discussed.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Environmental Sciences
Yan Huang, Xiaoqian Hao, Shuanglong Ma, Rui Wang, Yazhou Wang
Summary: This review comprehensively discusses the recent progress of covalent organic frameworks (COFs) in gas purification, especially in the capture, catalysis, and detection of common harmful gases. The design strategies of COF functional materials and the challenges and future research directions in this field are also summarized.
Article
Materials Science, Multidisciplinary
Lucas K. Beagle, Qiyi Fang, Ly D. Tran, Luke A. Baldwin, Christopher Muratore, Jun Lou, Nicholas R. Glavin
Summary: This review highlights recent progress in the synthesis, customization of properties, and integration with other materials of porous polymeric covalent organic frameworks (COFs) thin films, showcasing their potential applications in filtration, electronics, sensors, and electrochemistry.
Article
Chemistry, Multidisciplinary
Tong Liu, Yi Zhao, Min Song, Xinghan Pang, Xiaofei Shi, Jingjing Jia, Lifeng Chi, Guang Lu
Summary: In this study, researchers achieved the synthesis of ordered macroporous single crystals of imine-linked COFs (COF-300 and COF-303) through a template-assisted modulated strategy. The introduced macropores greatly shortened the microporous diffusion path in COF-300 single crystals, allowing all micropores to be fully accessible for iodine adsorption.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Wenwu Zou, Guoxing Jiang, Weifeng Zhang, Longhai Zhang, Zhiming Cui, Huiyu Song, Zhenxing Liang, Li Du
Summary: A strategy to construct proton conductors with increased conductivity and stability by introducing bottom-up hierarchical structure, mass transport interfaces, and host-guest interactions into covalent organic frameworks (COFs) is proposed. The resulting proton conductors based on a COF with hierarchical pores achieved high conductivity and maintained excellent stability.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yunlong Zheng, Sainan Zhang, Jinbiao Guo, Ruixuan Shi, Jiangyue Yu, Kaipeng Li, Ning Li, Zhenjie Zhang, Yao Chen
Summary: Enzyme immobilization is crucial for large-scale biocatalytic processes. This study presents a green and scalable approach to prepare high-performance biocatalysts through the assembly of enzymes with covalent organic frameworks. These biocatalysts have exceptional reusability and stability, making them efficient catalysts for important industrial reactions.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
Chenghan Yang, Chunfeng Mao, Qinghua Deng, Yong Yang, Yuming Zhou, Yiwei Zhang
Summary: In this study, a novel two-dimensional (2D) covalent organic framework (COF) with fxt topology was synthesized and metallized with gold species to form a heterogeneous catalyst. The Au@COF catalyst showed high catalytic activity and good recyclability, enabling the one-pot synthesis of flavone and its derivatives. This work demonstrates the great potential of metallized COFs in organic catalysis with unique well-defined pores.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
