ArticleNature communications2026
Enhanced proton conductivity in azole-functionalized three-dimensional crystalline covalent organic frameworks.
Article in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Superprotonic conductivity in crystalline and amorphous framework materials under anhydrous conditions.Chemical science · 2026Review
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Authors and funding
11 authors.
Funding
Abstract
Proton conduction pathways and mechanisms in covalent organic frameworks (COFs) have long been obscured by polycrystalline disorder. Here we report a solvent-free melt-phase post-synthetic modification (PSM) strategy that enables precise functionalization of three-dimensional single-crystalline COFs while preserving crystallinity. This methodology overcomes the limitations of solvent-mediated PSM by operating above the melting point of azole reagents, ensuring homogeneous pore accessibility without solvent occlusion. Applied to archetypal imine-linked COF-300, the method achieves crystallographically resolved conversion of fragile imine bonds (C = N, 1.245 Å) into robust amine linkages (C-N, 1.415 Å), concurrently covalently anchoring of proton-conductive azoles (C-N, 1.487 Å) on the COFs skeleton. The resulting azole-functionalized COFs (COF-300-1,2,3-triazole, COF-300-1,2,4-triazole, COF-300-pyrazole) exhibit intrinsic anhydrous superprotonic conductivity reaching 4.35 × 10
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