Solvent‐Influenced Fragmentations in Free‐Standing Three‐Dimensional Covalent Organic Framework Membranes for Hydrophobicity Switching DOI
Abdul Khayum Mohammed,

Ayesha A. Al Khoori,

Matthew A. Addicoat

et al.

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 61(13)

Published: Jan. 24, 2022

The ordered open organic frameworks membranes are attractive candidates for flow-assisted molecular separations. physicochemical properties of such mostly depend on their selectively chosen functional building blocks. In this work, we have introduced a novel concept switchability three-dimensional covalent framework (3D-COF) through simple solvent-influenced fragmentation method. This room-temperature interfacial synthesis provides free-standing 3D-COF with distinct from the same monomers. Notably, change solvent chloroform to ethyl acetate switches membrane property hydrophilic (water contact angle 60°) hydrophobic 142°) nature. passes oil molecules an oil-water emulsion gravitational flux 1536 L m-2 h-1 .

Language: Английский

Covalent organic frameworks DOI
Ke Tian Tan, Samrat Ghosh, Zhiyong Wang

et al.

Nature Reviews Methods Primers, Journal Year: 2023, Volume and Issue: 3(1)

Published: Jan. 12, 2023

Language: Английский

Citations

374
Porous organic polymers as a platform for sensing applications DOI
Shitao Wang, Hongtao Li, Huanan Huang

et al.

Chemical Society Reviews, Journal Year: 2022, Volume and Issue: 51(6), P. 2031 - 2080

Published: Jan. 1, 2022

Sensing analysis is significantly important for human health and environmental safety. In this review, POPs used as platforms various sensing applications have been summarized discussed.

Language: Английский

Citations

236
Functional Regulation and Stability Engineering of Three-Dimensional Covalent Organic Frameworks DOI
Xinyu Guan, Qianrong Fang, Yushan Yan

et al.

Accounts of Chemical Research, Journal Year: 2022, Volume and Issue: 55(14), P. 1912 - 1927

Published: June 27, 2022

ConspectusAs one of the most attractive members in porous materials family, covalent organic frameworks (COFs) have been reported thousands times since their first discovery 2005, covering design, synthesis, and applications. However, an overwhelming majority these COFs are based on two-dimensional (2D) topologies while three-dimensional (3D) numbered fewer than 100 up to date. In fact, baring enhanced specific surface area, interconnected channels, well-exposed functional moieties, highly adjustable structures, 3D often more competitive various application fields like adsorption, separation, chemical sensing, heterogeneous catalysis compared with 2D counterparts. significant crystallization problems poor stabilities, which might be attributed void absence π-π stacking, raised severe limitations over research COFs. To solve problems, elaborate synthesis regulations or moderate functionalization conditions required. More importantly, strategies for enhancing stabilities vital importance further development practical applications.In this Account, we review design principles, approaches, stability regulation methods toward We begin discussion some essential elements construction COF including topologies, interpenetrations, linkages, synthetic methods. After that, focus several COFs, situ approaches (utilizing generated linkages as active sites), bottom-up (embedding moieties from predesigned building blocks), postsynthesis modification (covalent metalation pristine frameworks). At last, highlight durable amplification is important framework application. This target could achieved through not only introduction extra strengthening force, such hydrophobic effects, coulomb repulsion, steric hindrance but also utilization robust enhance material nature.Due high interpenetrated multifarious functionalities, promising demonstrated excellent performance great potential a wide range adsorption catalysis, energy storage, so on. Although has limited by serious restriction, efforts devoted researchers past decade, mass developed control, regulation, enhancement expect practically utilized future advances preparation, materials.

Language: Английский

Citations

136
Conjugated Three-Dimensional High-Connected Covalent Organic Frameworks for Lithium–Sulfur Batteries DOI
Wenbo Liu, Lei Gong, Zhixin Liu

et al.

Journal of the American Chemical Society, Journal Year: 2022, Volume and Issue: 144(37), P. 17209 - 17218

Published: Sept. 9, 2022

Developing conjugated three-dimensional (3D) covalent organic frameworks (COFs) still remains an extremely difficult task due to the lack of enough 3D building blocks. Herein, condensation between 8-connected pentiptycene-based D2h block (DMOPTP) and 4-connected square-planar linkers affords two COFs (named 3D-scu-COF-1 3D-scu-COF-2). A combination homoaromatic structure former with 2D latter linking units enables π-electron delocalization over whole both COFs, endowing them excellent conductivities 3.2-3.5 × 10-5 S cm-1. In particular, rigid quadrangular prism shape DMOPTP guides formation a twofold interpenetrated scu topology high-connected permanent porosity large Brunauer-Emmett-Teller (BET) surface area 2340 1602 m2 g-1 for 3D-scu-COF-2, respectively, ensuring effective small molecule storage mass transport characteristics. This, in their good charge properties, renders promising sulfur host materials lithium-sulfur batteries (LSBs) high capacities (1035-1155 mA h at 0.2 C, 1 C = 1675 g-1), rate capabilities (713-757 5.0 C), superior cycling stability (71-83% capacity retention 2.0 after 500 cycles), surpassing most LSB cathodes reported thus far.

Language: Английский

Citations

107
Three‐Dimensional Covalent Organic Frameworks: From Synthesis to Applications DOI
Xinyu Guan, Fengqian Chen, Shilun Qiu

et al.

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 62(3)

Published: Oct. 18, 2022

Abstract Three‐dimensional covalent organic frameworks (3D COFs) with spatially periodic networks demonstrate significant advantages over their 2D counterparts, including enhanced specific surface areas, interconnected channels, and more sufficiently exposed active sites. Nevertheless, research on these materials has met an impasse due to serious problems in crystallization stability, which must be solved for practical applications. In this Minireview, we first summarize some strategies preparing functional 3D COFs, techniques functionalization methods. Hereafter, applications of are presented, covering adsorption, separation, catalysis, fluorescence, sensing, batteries. Finally, the future challenges perspectives development COFs discussed.

Language: Английский

Citations

83
Structural design and determination of 3D covalent organic frameworks DOI
Bo Gui, Huimin Ding, Yuanpeng Cheng

et al.

Trends in Chemistry, Journal Year: 2022, Volume and Issue: 4(5), P. 437 - 450

Published: Feb. 5, 2022

Language: Английский

Citations

80
Porous framework materials for energy & environment relevant applications: A systematic review DOI Creative Commons

Yutao Liu,

Liyu Chen, Lifeng Yang

et al.

Green Energy & Environment, Journal Year: 2023, Volume and Issue: 9(2), P. 217 - 310

Published: Jan. 3, 2023

Carbon peaking and carbon neutralization trigger a technical revolution in energy & environment related fields. Development of new technologies for green production storage, industrial saving efficiency reinforcement, capture, pollutant gas treatment is highly imperious demand. The emerging porous framework materials such as metal–organic frameworks (MOFs), covalent organic (COFs) hydrogen-bonded (HOFs), owing to the permanent porosity, tremendous specific surface area, designable structure customizable functionality, have shown great potential major energy-consuming processes, including sustainable catalytic conversion, energy-efficient separation storage. Herein, this manuscript presents systematic review global comprehensive applications, from macroscopic application perspective.

Language: Английский

Citations

77
Vinylene-linked covalent organic frameworks with manipulated electronic structures for efficient solar-driven photocatalytic hydrogen production DOI

Zhipeng Xie,

Xiubei Yang, Pei Zhang

et al.

CHINESE JOURNAL OF CATALYSIS (CHINESE VERSION), Journal Year: 2023, Volume and Issue: 47, P. 171 - 180

Published: March 21, 2023

Language: Английский

Citations

76
Covalent organic frameworks for CO2 capture: from laboratory curiosity to industry implementation DOI
He Li,

Akhil Dilipkumar,

Saifudin Abubakar

et al.

Chemical Society Reviews, Journal Year: 2023, Volume and Issue: 52(18), P. 6294 - 6329

Published: Jan. 1, 2023

Synergistic developments of covalent organic frameworks and engineering processes can expedite the qualitative leap for net-zero carbon emissions.

Language: Английский

Citations

72
An ionic vinylene-linked three-dimensional covalent organic framework for selective and efficient trapping of ReO4− or 99TcO4− DOI Creative Commons

Cheng-Rong Zhang,

Wei‐Rong Cui,

Shun-Mo Yi

et al.

Nature Communications, Journal Year: 2022, Volume and Issue: 13(1)

Published: Dec. 9, 2022

Abstract The synthesis of ionic olefin linked three-dimensional covalent organic frameworks (3D COFs) is greatly challenging given the hardness formation stable carbon-carbon double bonds (–C = C–). Herein, we report a general strategy for designing porous positively charged sp 2 carbon-linked 3D COFs through Aldol condensation promoted by quaternization. obtained COFs, namely TFPM-PZI and TAPM-PZI, showed impressive chemical stability. Furthermore, with regular porosity endow selective capture radioactive ReO 4 − /TcO great removal efficiency in simulated Hanford waste. This research not only broadens category but also promotes application as efficient functional materials.

Language: Английский

Citations

70