Imine and imine-derived linkages in two-dimensional covalent organic frameworks

Nature Reviews Chemistry, Journal Year: 2022, Volume and Issue: 6(12), P. 881 - 898

Published: Nov. 11, 2022

Language: Английский

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Covalent organic frameworks towards photocatalytic applications: Design principles, achievements, and opportunities

Coordination Chemistry Reviews, Journal Year: 2022, Volume and Issue: 475, P. 214882 - 214882

Published: Oct. 14, 2022

Language: Английский

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Structural Motifs in Covalent Organic Frameworks for Photocatalysis

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: March 10, 2024

Abstract Covalent organic frameworks (COFs) attract significant attention due to their ordered, crystalline, porous, metal‐free, and predictable structures. These unique characteristics offer great opportunities for the diffusion transmission of photogenerated charges during photocatalysis. Currently, a considerable number COFs are used as metal‐free semiconductor photocatalysts. This review aims understand relationships between structure photocatalysis performance provides in‐depth insight into synthetic strategy improve performance. Subsequently, focuses on structural motif in sustainable photocatalytic hydrogen evolution, carbon dioxide reduction, peroxide generation, compound transformations. Last, conjunction with progress achieved challenges yet be overcome, candid discussion is undertaken regarding field COF photocatalysis, accompanied by presentation potential research avenues future directions. seeks provide readers comprehensive understanding pivotal role robust guidance innovative utilization

Language: Английский

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Porous organic polymers: a progress report in China

Science China Chemistry, Journal Year: 2023, Volume and Issue: unknown

Published: Feb. 3, 2023

Language: Английский

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Efficient proton conduction in porous and crystalline covalent-organic frameworks (COFs)

Journal of Energy Chemistry, Journal Year: 2023, Volume and Issue: 82, P. 198 - 218

Published: April 14, 2023

Language: Английский

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Spacer‐Engineered Ionic Channels in Covalent Organic Framework Membranes toward Ultrafast Proton Transport

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(16)

Published: Jan. 23, 2023

Side-chain engineering of covalent organic frameworks as advanced ion conductors is a critical issue to be explored. Herein, ionic framework membranes (iCOFMs) with spacer-engineered channel are de novo designed and prepared. The channels decorated side chains comprising spacers having different carbon chain lengths the -SO3 H groups at end. Attributed synergistic contribution from groups, iCOFM moderate-length spacer exhibit highest through-plane proton conductivity 889 mS cm-1 90 °C.

Language: Английский

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Blue light photocatalytic oxidation of sulfides to sulfoxides with oxygen over a thiazole-linked 2D covalent organic framework

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 338, P. 123070 - 123070

Published: July 5, 2023

Language: Английский

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General Strategy for Incorporation of Functional Group Handles into Covalent Organic Frameworks via the Ugi Reaction

Journal of the American Chemical Society, Journal Year: 2023, Volume and Issue: 145(11), P. 6230 - 6239

Published: March 9, 2023

The library of imine-linked covalent organic frameworks (COFs) has grown significantly over the last two decades, featuring a variety morphologies, pore sizes, and applications. An array synthetic methods been developed to expand scope COF functionalities; however, most these were designed introduce functional scaffolds tailored specific application. Having general approach diversify COFs via late-stage incorporation group handles would greatly facilitate transformation materials into platforms for useful Herein, we report strategy in Ugi multicomponent reaction. To demonstrate versatility this approach, have synthesized with hexagonal kagome morphologies. We then introduced azide, alkyne, vinyl groups, which could be readily utilized post-synthetic modifications. This facile enables functionalization any containing imine linkages.

Language: Английский

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Progress of Covalent Organic Framework Photocatalysts: From Crystallinity–Stability Dilemma to Photocatalytic Performance Improvement

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(15), P. 11675 - 11704

Published: July 22, 2024

Language: Английский

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Vitrification-enabled enhancement of proton conductivity in hydrogen-bonded organic frameworks

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: May 10, 2024

Abstract Hydrogen-bonded organic frameworks (HOFs) are versatile materials with potential applications in proton conduction. Traditional approaches involve incorporating humidity control to address grain boundary challenges for This study finds vitrification as an alternative strategy eliminate effect HOFs by rapidly melt quenching the kinetically stable HOF-SXU-8 glassy state HOF-g . Notably, a remarkable enhancement conductivity without was achieved after vitrification, from 1.31 × 10 −7 S cm −1 5.62× −2 at 100 °C. Long term stability test showed negligible performance degradation, and even 30 °C, remained high level of 1.2 Molecule dynamics (MD) simulations X-ray total scattering experiments reveal system is consisted three kinds clusters, i.e., 1,5-Naphthalenedisulfonic acid (1,5-NSA) anion N,N-dimethylformamide (DMF) molecule H + -H 2 O clusters. In which, plays important role bridge these clusters mainly related on 3 These findings provide valuable insights optimizing HOFs, enabling efficient conduction, advancing energy conversion storage devices.

Language: Английский

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