Covalent Organic Framework for Rechargeable Batteries: Mechanisms and Properties of Ionic Conduction

Advanced Energy Materials, Journal Year: 2022, Volume and Issue: 12(20)

Published: April 10, 2022

Abstract Ionic conduction plays a critical role in the process of electrode reactions and charge transfer kinetics rechargeable battery. Covalent organic frameworks (COFs) have emerged as an exciting new class ionic conductors, made great progress terms their application batteries. The unique features COFs, such well‐defined directional channels, functional diversity, structural robustness, endow COF‐based conductors with low diffusion energy barrier excellent temperature tolerance, which are much superior to classic inorganic or polymer conductors. Here, comprehensive analysis summary ion‐conducting behavior presented, design principles for COFs emphasized. Moreover, systematic overview recent development serving electrodes, separators, solid electrolytes, artificial interphase materials diverse battery applications, metal‐ion batteries, lithium metal lithium–sulfur lithium–CO 2 zinc–air etc., is proposed. This review expected provide theoretical guidance novel kinds conductor bearing intrinsic framework structures boost further research enthusiasm

Language: Английский

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Design and application of ionic covalent organic frameworks

Coordination Chemistry Reviews, Journal Year: 2021, Volume and Issue: 438, P. 213873 - 213873

Published: March 19, 2021

Language: Английский

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Porous crystalline materials for memories and neuromorphic computing systems

Chemical Society Reviews, Journal Year: 2023, Volume and Issue: 52(20), P. 7071 - 7136

Published: Jan. 1, 2023

This review highlights the film preparation methods and application advances in memory neuromorphic electronics of porous crystalline materials, involving MOFs, COFs, HOFs, zeolites.

Language: Английский

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Tuning the Interlayer Interactions of 2D Covalent Organic Frameworks Enables an Ultrastable Platform for Anhydrous Proton Transport

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 61(35)

Published: July 8, 2022

The development of effective, stable anhydrous proton-conductive materials is vital but challenging. Covalent organic frameworks (COFs) are promising platforms for ion and molecule conduction owing to their pre-designable structures tailor-made functionalities. However, poor chemical stability due weak interlayer interactions intrinsic reversibility linkages. Herein, we present a strategy enhancing the two-dimensional COFs via importing planar, rigid triazine units into center C3 -symmetric monomers. developed triazine-core-based COF (denoted as TPT-COF) possesses well-defined crystalline structure, ordered nanochannels, prominent porosity. proton conductivity was ≈10 times those non-triazinyl COFs, even reaching up 1.27×10-2 S cm-1 at 160 °C. Furthermore, TPT-COF exhibited structural ultrastability, making it an effective transport platform with remarkable long-term durability.

Language: Английский

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Bio‐Inspired Synthetic Hydrogen‐Bonded Organic Frameworks for Efficient Proton Conduction

Advanced Materials, Journal Year: 2022, Volume and Issue: 35(7)

Published: Nov. 19, 2022

Hydrogen-bonded organic frameworks (HOFs) are a rising class of promising proton-conducting materials. However, they always suffer from the inherent contradiction between chemical stability and proton conduction. Herein, inspired by self-assembly lipid bilayer membranes, series aminomethylphosphonic acid-derived single-component HOFs successfully developed with different substituents attached to phosphonate oxygen group. They remain highly stable in strong acid or alkaline water solutions for one month owing presence charge-assisted hydrogen bonds. Interestingly, absence external carriers, methyl-substituted phosphonate-based HOF exhibits very high conductivity up 4.2 × 10-3 S cm-1 under 80 °C 98% relative humidity. This value is not only comparable that consisting mixed ligands but also highest reported HOFs. A combination single-crystal structure analysis density functional theory calculations reveals attributed strengthened H-bonding interactions positively charged amines negatively groups channel bio-inspired finding demonstrates well-defined molecular conductors great importance precise understanding relationship property.

Language: Английский

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Asymmetric Hydrophosphonylation of Imines to Construct Highly Stable Covalent Organic Frameworks with Efficient Intrinsic Proton Conductivity

Journal of the American Chemical Society, Journal Year: 2022, Volume and Issue: 144(22), P. 9624 - 9633

Published: May 23, 2022

Imine-linked covalent organic frameworks (COFs) have received widespread attention because of their structure features such as high crystallinity and tunable pores. However, the intrinsic reversibility imine bond leads to poor stability imine-linked COFs under strong acid conditions. Also, thermal is significantly lower than that many other COFs. Herein, we report for first time reversible bonds in skeleton can be locked through asymmetric hydrophosphonylation reaction phosphite. The functionalized not only retain porous but also exhibit evidently improved chemical stabilities. In addition, phosphorous groups generated by acidic hydrolysis attached endow with good proton conductivity. Due diversity phosphite derivatives COFs, this work may provide an avenue extending COF structures functions reaction.

Language: Английский

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Hierarchically Macro–Microporous Covalent Organic Frameworks for Efficient Proton Conduction

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(18)

Published: Feb. 12, 2023

Abstract Assembling molecular proton carriers into crosslinked networks is widely used to fabricate conductors, but they often suffer losses in conduction efficiency and stability accompanied by unclear causes. Covalent organic frameworks (COFs), with well‐defined crystal excellent stability, offer a platform for exploring the transfer process. Herein, strategy construct conductors that induce conductivity introducing bottom‐up hierarchical structure, mass transport interfaces, host–guest interactions COFs proposed. The proton‐transport platforms are designed possess hierarchically macro–microporous structure storage transport. protic ionic liquids, low dissociation energies investigated DFT calculation, installed at open channel walls faster motion. As expected, resultant based on covalent framework (PIL 0.5 @m‐TpPa‐SO 3 H) pores increase approximately three orders of magnitude, achieving value 1.02 × 10 −1 S cm (90 °C, 100% RH), maintain stability. In addition, dynamics simulations reveal mechanism “hydrogen‐bond network” conduction. This work offers fresh perspective COF‐based material manufacturing high‐performance via protocol macro‐micropores.

Language: Английский

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Nanofibrous Porous Organic Polymers and Their Derivatives: From Synthesis to Applications

Advanced Science, Journal Year: 2024, Volume and Issue: 11(19)

Published: March 12, 2024

Abstract Engineering porous organic polymers (POPs) into 1D morphology holds significant promise for diverse applications due to their exceptional processability and increased surface contact enhanced interactions with guest molecules. This article reviews the latest developments in nanofibrous POPs derivatives, encompassing polymer nanofibers, composites, POPs‐derived carbon nanofibers. The review delves design fabrication strategies, elucidates formation mechanisms, explores functional attributes, highlights promising applications. first section systematically outlines two primary approaches of POPs, i.e., direct bulk synthesis electrospinning technology. Both routes are discussed compared terms template utilization post‐treatments. Next, performance derivatives reviewed including water treatment, water/oil separation, gas adsorption, energy storage, heterogeneous catalysis, microwave absorption, biomedical systems. Finally, highlighting existent challenges offering future prospects concluded.

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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Proton conductive Zr-based MOFs

Inorganic Chemistry Frontiers, Journal Year: 2020, Volume and Issue: 7(19), P. 3765 - 3784

Published: Jan. 1, 2020

The preparation strategies, structures, proton conductivity, conducting mechanism, application prospects and future research trends of zirconium-based MOFs are reviewed highlighted.

Language: Английский

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