Porous hydrogen-bonded organic framework membranes for high-performance molecular separation

Jiang, Xiaotian; Yin, Qi; Liu, Bai‐Tong; Chen, Junyu; Wang, Rui; Liu, Tian‐Fu

doi:10.1039/d1na00199j

Cited by 26 publications

(22 citation statements)

References 36 publications

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“…4d, the HOF 1 was uniformly dispersed on the chitosan matrix to improve the hydrogen bond strength in the membrane, which can increase the σ of the hybrid membrane. 39,40 Note that we speculate that the particles of HOF 1 are not visible in Fig. 4c for two possible reasons: first, the particles are too small and completely dispersed within the CS membrane, and second, the stronger interaction between HOF 1 and the CS membrane components leads to their adequate dispersion.…”

Section: Resultsmentioning

confidence: 96%

Comparative study on proton conductivity of a polypyridinyl multicarboxylate-based hydrogen-bonded organic framework and related chitosan composite membrane

et al. 2023

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Section: Resultsmentioning

confidence: 96%

Comparative study on proton conductivity of a polypyridinyl multicarboxylate-based hydrogen-bonded organic framework and related chitosan composite membrane

et al. 2023

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“…The merits of HOFs also enable them as multifunctional materials for many other applications, such as electrochromism, ,, photochromism, environmental applications, ,, chiral separation, structural determination, molecular actuator, etc . Only several representative examples recently reported are shown below since some of them were summarized by ours’ and others’ review articles. , …”

Section: Diverse Applicationsmentioning

confidence: 99%

“…Since then, emphasis has been put on how to prepare porous HOFs and how to exploit their functionalities. Nowadays, HOFs have become a unique type of porous multifunctional material for various applications. − …”

Section: Introductionmentioning

confidence: 99%

Multifunctional Porous Hydrogen-Bonded Organic Frameworks: Current Status and Future Perspectives

et al. 2022

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Hydrogen-bonded organic frameworks (HOFs), self-assembled from organic or metalated organic building blocks (also termed as tectons) by hydrogen bonding, π−π stacking, and other intermolecular interactions, have become an emerging class of multifunctional porous materials. So far, a library of HOFs with high porosity has been synthesized based on versatile tectons and supramolecular synthons. Benefiting from the flexibility and reversibility of H-bonds, HOFs feature high structural flexibility, mild synthetic reaction, excellent solution processability, facile healing, easy regeneration, and good recyclability. However, the flexible and reversible nature of H-bonds makes most HOFs suffer from poor structural designability and low framework stability. In this Outlook, we first describe the development and structural features of HOFs and summarize the design principles of HOFs and strategies to enhance their stability. Second, we highlight the state-ofthe-art development of HOFs for diverse applications, including gas storage and separation, heterogeneous catalysis, biological applications, sensing, proton conduction, and other applications. Finally, current challenges and future perspectives are discussed.

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“…Instead, the anions act as counter ions and linkers between [Ce 4 (tpen) 4 (CA) 4 ] 4 + squares. It is worth noting that most of the reported porous HOFs use NÀ H or OÀ H bonds as hydrogen bond donors, [37][38][39] while 1-CA•X represent the rare examples of porous assemblies using CÀ H bonds as hydrogen bond donors. [40] The stability of 1-CA•ClO 4 is characterized both physically and chemically.…”

Section: à Anions Through Cà H•••o Hydrogen Bonds (Figures 1b S6) The...mentioning

confidence: 99%

From a Metal–Organic Square to a Robust and Regenerable Supramolecular Self‐assembly for Methane Purification

Cao

et al. 2022

Angewandte Chemie

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Porous supramolecular assemblies constructed by noncovalent interactions are promising for adsorptive purification of methane because of their easy regeneration. However, the poor stability arising from the weak noncovalent interactions has obstructed their practical applications. Here, we report a robust and easily regenerated polyhedron‐based cationic framework assembled from a metal–organic square. This material exhibits a very low affinity for CH4 and N2, but captures other competing gases (e.g. C2H6, C3H8, and CO2) with a moderate affinity. These results underpin highly selective separation of a range of gas mixtures that are relevant to natural gas and industrial off‐gas. Dynamic breakthrough studies demonstrate its practical separation for C2H6/CH4, C3H8/CH4, CO2/N2, and CO2/CH4. Particularly, the separation time is ≈11 min g−1 for the C2H6/CH4 (15/85 v/v) mixture and ≈49 min g−1 for the C3H8/CH4 (15/85 v/v) mixture (under a flow of 2.0 mL min−1), respectively, enabling its capability for CH4 purification from light alkanes.

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Porous hydrogen-bonded organic framework membranes for high-performance molecular separation

Abstract: Hydrogen-bonded organic frameworks (HOFs) with intrinsic, tunable, and uniform pores are promising candidate of membrane for molecular separation but have yet to be explored in this filed. Herein, a type...

Cited by 26 publications

References 36 publications

Comparative study on proton conductivity of a polypyridinyl multicarboxylate-based hydrogen-bonded organic framework and related chitosan composite membrane

Comparative study on proton conductivity of a polypyridinyl multicarboxylate-based hydrogen-bonded organic framework and related chitosan composite membrane

Multifunctional Porous Hydrogen-Bonded Organic Frameworks: Current Status and Future Perspectives

From a Metal–Organic Square to a Robust and Regenerable Supramolecular Self‐assembly for Methane Purification

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