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Phospholipid-Bioinspired Hydrogen-Bonded Organic Frameworks for Ultrahigh Proton Conductivity

Dongbo LiuChina−Uzbekistan Joint Laboratory on Advanced Porous Materials, State Key Laboratory of Bio-Based Fiber Materials, School of Materials Science and EngineeringXiaomin LiChina−Uzbekistan Joint Laboratory on Advanced Porous Materials, State Key Laboratory of Bio-Based Fiber Materials, School of Materials Science and EngineeringJingjing LiuCollege of Chemistry and Materials Science, Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, Anhui Key Laboratory of Functional Molecular SolidsJunchao JiaChina−Uzbekistan Joint Laboratory on Advanced Porous Materials, State Key Laboratory of Bio-Based Fiber Materials, School of Materials Science and EngineeringAziz B. IbragimovUzbekistan Academy of SciencesJunkuo GaoChina−Uzbekistan Joint Laboratory on Advanced Porous Materials, State Key Laboratory of Bio-Based Fiber Materials, School of Materials Science and Engineering

ACS Sustainable Chemistry & Engineeringjournal2025en

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Annotatsiya

Achieving ultrahigh proton conductivities coupled with excellent performance durability through the biomimetic engineering of hydrogen-bonded organic frameworks (HOFs) remains a critical challenge in solid-state electrolyte research. Herein, inspired by phospholipids and charge-assisted hydrogen bonds, we developed bioinspired ZSTU-88 and ZSTU-99 via rational molecular self-assembly design. The ZSTU-88 (ZSTU-88: C17H24FN3O11P2) and ZSTU-99 (ZSTU-99: C16H24FN3O11P2) exhibit ultrahigh proton conductivities of 4.64 × 10–1 S cm–1 and 2.48 × 10–1 S cm–1, respectively, at 98% relative humidity and 70 °C due to the formation of extensive hydrogen-bonding networks constructed by protonated amines, dihydrogen phosphate ions, and phosphoric acid molecules. Notably, they demonstrate remarkable durability with no degradation in performance for at least 300 h. This work establishes a new paradigm for designing durable, high-performance HOF electrolytes.

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Mavzular

Metal-Organic Frameworks: Synthesis and Applications Organic and Molecular Conductors Research Machine Learning in Materials Science

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DOI: 10.1021/acssuschemeng.5c05951

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