Review
Chemistry, Multidisciplinary
Zi-Jian Zheng, Huan Ye, Zai-Ping Guo
Summary: MOFs/COFs have great potential in Li-S batteries as hosts for sulfur, electrolyte containers, separators, and barriers for blocking Li dendrites. They also offer important prospects for future research in this field.
ENERGY & ENVIRONMENTAL SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Jiangnan Li, Gemma L. Smith, Yinlin Chen, Yujie Ma, Meredydd Kippax-Jones, Mengtian Fan, Wanpeng Lu, Mark D. Frogley, Gianfelice Cinque, Sarah J. Day, Stephen P. Thompson, Yongqiang Cheng, Luke L. Daemen, Anibal J. Ramirez-Cuesta, Martin Schroder, Sihai Yang
Summary: Reversible high-capacity adsorption of SO2 has been achieved in Zr-based metal-organic framework (MOF) materials. By introducing amine, atomically-dispersed Cu-II, or heteroatomic sulphur sites into the pores, the capture of SO2 at low concentrations is enhanced, and the captured SO2 can be converted to a valuable pharmaceutical intermediate.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Shanghua Xing, Jun Liang, Philipp Brandt, Felix Schaefer, Alexander Nuhnen, Tobias Heinen, Istvan Boldog, Jens Moellmer, Marcus Lange, Oliver Weingart, Christoph Janiak
Summary: In this study, a pre-synthetic pore environment design strategy was utilized to create stable methyl-functionalized metal-organic frameworks (MOFs) for enhanced low pressure SO2 adsorption and separation from CO2. The key role of increasing methyl group densities at the benzenedicarboxylate linker in optimizing pore size was demonstrated for the first time. Various methods, including gas sorption isotherms, theoretical calculations, simulations, and DFT calculations, were used to validate the SO2 separation potential of methyl-functionalized MOFs.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Inorganic & Nuclear
Xi Chen, Sergei Sapchenko, Wanpeng Lu, Ming Li, Meng He, Yinlin Chen, Mark D. Frogley, Ivan da Silva, Sihai Yang, Martin Schroder
Summary: Metal-organic framework (MOF) materials have gained increasing interest in electronics due to their diverse structures, intrinsic porosity, and designable host-guest interactions. In this study, we investigated the dielectric properties of a series of robust materials, MFM-300(M) (M = Al, Sc, Cr, Fe, Ga, In), upon exposure to different guest molecules. We found that MFM-300(Fe) showed the highest increase in dielectric constant when adsorbing NH3, indicating its potential as a powerful dielectric-based sensor for NH3. Structural analysis and spectroscopy confirmed the electron delocalization induced by host-guest interactions between NH3 and the MOF host, resulting in structural polarization and a high dielectric constant.
INORGANIC CHEMISTRY
(2023)
Article
Multidisciplinary Sciences
Qiyi Fang, Zhengqian Pang, Qing Ai, Yifeng Liu, Tianshu Zhai, Doug Steinbach, Guanhui Gao, Yifan Zhu, Teng Li, Jun Lou
Summary: The researchers successfully controlled the number of layers in 2D covalent-organic frameworks (COFs) and studied the layer-dependent mechanical properties of COFs with different interlayer interactions. It was found that COFTAPB-DMTP had enhanced interlayer interactions, resulting in layer-independent mechanical properties, while the mechanical properties of COFTAPB-PDA significantly decreased with an increasing number of layers.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Multidisciplinary Sciences
Chengjun Kang, Zhaoqiang Zhang, Shibo Xi, He Li, Adam K. Usadi, David C. Calabro, Lisa Saunders Baugh, Yuxiang Wang, Dan Zhao
Summary: This study reports a CO2 capture mechanism of doped covalent organic frameworks (COFs), which significantly increases the CO2 adsorption capacity. This discovery provides new insights into developing chemistry for CO2 capture and conversion.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Review
Chemistry, Physical
Lingjun Kong, Ming Liu, Hui Huang, Yunhua Xu, Xian-He Bu
Summary: Metal-organic frameworks (MOFs) and covalent-organic frameworks (COFs) are emerging families of functional materials with immense potential for high-performance electrode materials for metal-ion batteries. Despite their advantages, MOFs/COFs and their derivatives face challenges as cathode materials.
ADVANCED ENERGY MATERIALS
(2022)
Article
Engineering, Chemical
Zhengdong Guo, Yijian Li, Peixin Zhang, Jiyu Cui, Liyuan Chen, Lifeng Yang, Jun Wang, Xili Cui, Huabin Xing
Summary: A highly-stable ultramicroporous material CPL-1-NH2 was reported for efficient separation of low concentration SO2 and CO2, with high separation selectivity. The narrow channel with lined amino groups in this material exhibits significantly higher affinity to SO2 than CO2, demonstrating good capture performance even in the presence of CO2 and trace moisture.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
Xinbo Wang, Li Li, Kai Li, Ruyue Su, Yue Zhao, Song Gao, Wenhan Guo, Zhiqiang Luan, Guojie Liang, Hailing Xi, Ruqiang Zou
Summary: The hierarchically porous metal hydroxide/metal-organic framework composite nanoarchitectures show broad-spectrum removal activity for three chemically distinct toxic gases. The inclusion of M(OH)4 enhances the material's ability for toxic chemical mitigation, with high breakthrough uptake for SO2, NH3, and NO2. Post-breakthrough characterization reveals abundant M-OH groups and unsaturated M (IV) centers, providing extra adsorption sites for irreversible toxic chemical capture.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Engineering, Environmental
Tianyu Wang, Chengyu Wang, Xin Yang, Ren Ma, Qi Yang, Weiliang Shi, Zhengqiang Xia, Huiyang Ma, Qing Wei, Sanping Chen
Summary: Heterojunction engineering has been employed to improve the charge separation and photocatalytic activity of semiconductor photocatalysts. In this study, a series of covalently linked homologous photocatalysts were fabricated and tested for the photocatalytic reduction of CO2. The NiO(1 1 1)/Ni-BDC-3 catalyst exhibited the best performance, attributed to enhanced interfacial charge transfer and electron supply.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Chemistry, Inorganic & Nuclear
Nishesh Kumar Gupta, Kumar Vikrant, Kwang Soo Kim, Ki-Hyun Kim, Dimitrios A. Giannakoudakis
Summary: This article provides a comprehensive review of various methods for the regeneration of MOFs after capturing H2S, SO2, and NO2. Pressure and temperature swing methods can reactivate MOFs after physical adsorption of gases. Although regenerating MOFs with chemisorbed sulfurous gases poses more difficulties, reactivation strategies such as solvent and ultraviolet irradiation-based treatments can be recommended.
COORDINATION CHEMISTRY REVIEWS
(2022)
Article
Engineering, Chemical
Xianqiang Zheng, Yanlong Shen, Shitao Wang, Ke Huang, Dapeng Cao
Summary: This study explores the selective adsorption of SF6 in different frameworks and identifies COF-6, MOF-180, and PAF-302 as promising candidates for SF6 adsorption at different pressures.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2021)
Review
Chemistry, Inorganic & Nuclear
Limin Zheng, Fangqi Wang, Chenrui Jiang, Sijing Ye, Jinzhe Tong, Pierre Dramou, Hua He
Summary: Nanozymes, a type of catalytic nanomaterials with enzymatic properties, have gained significant interest in recent years due to their stability and cost-effectiveness. Metal-organic frameworks (MOFs) and covalent-organic frameworks (COFs) as emerging organic framework materials have attracted attention for their high surface area and flexible nano-scale porosity, which can be designed to mimic ideal enzyme activities. This review introduces MOFs-based and COFs-based nanozymes, discusses their construction and composition, summarizes their applications in sensing and therapy, and briefly discusses the current development status, challenges, and future prospects of MOFs and COFs-based nanozymes to promote wider applications.
COORDINATION CHEMISTRY REVIEWS
(2022)
Article
Chemistry, Applied
Xiaohang Wei, Dongdong Huang, Dong Pei, Baoqian Liu, Duolong Di
Summary: Isolation and enrichment of flavonoids from natural medicinal extracts is challenging. Covalent organic frameworks (COFs) are increasingly used as adsorbents due to their high adsorption capacity and selectivity. In this study, two imine-linked COFs (TFPPy-CB and TFPPy-ODH) were synthesized and characterized. The COFs exhibited good thermal stability, hydrophobicity, and large pore size, and showed high adsorption capacities for flavonoids.
MICROPOROUS AND MESOPOROUS MATERIALS
(2023)
Review
Chemistry, Inorganic & Nuclear
Wei -Ting Chung, Islam M. A. Mekhemer, Mohamed Gamal Mohamed, Ahmed M. Elewa, Ahmed F. M. EL-Mahdy, Ho-Hsiu Chou, Shiao-Wei Kuo, Kevin C. -W. Wu
Summary: In recent years, both MOFs and COFs, known for their specific surface area, tunable porosity, and structural versatility, have been widely used in catalysis. Among these applications, catalytic hydrogen production processes have received significant attention as an alternative energy source to fossil fuels and a solution to global warming. This review provides an overview of the recent advancements and applications of MOFs/COFs-based catalysts for hydrogen production, including steam reforming, dry reforming, electrocatalytic water splitting, photocatalytic water splitting, and photo-electrocatalytic water splitting. The design of MOF/COF-based catalysts, as well as the opportunities and challenges in their use for hydrogen production, are also discussed.
COORDINATION CHEMISTRY REVIEWS
(2023)
