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Updated: May 20, 2025
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Microfluidic-based Synthesis of Covalent Organic Frameworks COFs: A Tool for Continuous Production of COF Fibers and Direct Printing on a Surface
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Diseño reticular y síntesis de estructuras orgánicas covalentes con tejas hexagonales irregulares
Hong Li1,2, Xiao-Rui Ren1, Yan Wang1,2
1CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Science (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China.
Journal of the American Chemical Society
|March 24, 2025
Resumen
Los investigadores sintetizaron nuevos marcos orgánicos covalentes 2D (COF) con tejas irregulares, creando COF-hit y COF-bex. El COF-hit exhibe una absorción de agua excepcional, lo que mejora la química reticular y los materiales del marco.
Área de la Ciencia:
- Ciencias de los materiales
- Química
Sus antecedentes:
- La química reticular impulsa el desarrollo del material marco.
- Las estructuras orgánicas covalentes (COF) con revestimiento irregular son escasas debido a restricciones geométricas.
Objetivo del estudio:
- Para sintetizar COFs 2D con tejas irregulares utilizando los principios de la química reticular.
- Explorar nuevas estructuras topológicas en los FOC.
Principales métodos:
- Desconstrucción de los azulejos hexagonales irregulares de tipo III en monómeros D2 + D2.
- Síntesis de COF en condiciones de crecimiento de cristales sintonizados.
- Caracterización mediante difracción de rayos X en polvo y microscopía electrónica de transmisión de alta resolución.
Principales resultados:
- Primera síntesis exitosa de COFs 2D con tejas irregulares y topología de "golpe".
- Isómeros reticulares obtenidos: COF-hit y COF-bex con estructuras distintas.
- COF-hit muestra una excelente absorción de agua bajo una alta humedad.
Conclusiones:
- El diseño racional de los FOC con revestimiento irregular amplía la diversidad estructural.
- Este trabajo abre nuevas vías en la química reticular y los materiales de marco.
- Los COF desarrollados ofrecen potencial para aplicaciones en la absorción de agua.
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