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Updated: Jul 4, 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
Published on: July 10, 2017
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Síntesis de un marco orgánico covalente tridimensional de 12 conexiones con topología lineal
Zonglong Li1, Guojie Xu2, Chenxi Zhang1,3,4
1Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China.
Journal of the American Chemical Society
|January 26, 2024
Resumen
Los investigadores desarrollaron un nuevo precursor de triptceno con 12 conexiones, lo que permitió la creación de un nuevo marco orgánico covalente tridimensional (3D COF). Este avance amplía la diversidad estructural de los FOC 3D y sus aplicaciones potenciales.
Área de la Ciencia:
- Ciencias de los materiales
- Química
- Nanotecnología
Sus antecedentes:
- Los marcos orgánicos covalentes tridimensionales (3D COF) son materiales cruciales, pero su diversidad estructural está limitada por la conectividad de los bloques de construcción orgánicos.
- Los COF 3D actuales suelen exhibir conectividades de solo 4, 6 u 8, lo que restringe la exploración de nuevas estructuras de marco.
Objetivo del estudio:
- Diseñar y sintetizar bloques de construcción orgánicos con mayor conectividad para ampliar el alcance estructural de los COF 3D.
- Desarrollar un nuevo COF 3D con una topología única y una gran superficie.
Principales métodos:
- Diseño y síntesis de un precursor basado en triptíceno con conectividad de 12 veces (triptíceno-12-CHO).
- Cristalización y caracterización del marco orgánico covalente 3D resultante (3D-lnj-COF) con topología lnj.
Principales resultados:
- Se sintetizó con éxito el triptceno-12-CHO, el primer precursor reportado con conectividad 12.
- Preparado un nuevo COF 3D (3D-lnj-COF) con poros de panal y porosidad permanente.
- Se obtuvo una superficie de Brunauer-Emmett-Teller (BET) de 1159,6 m2 g-1 para el COF 3D sintetizado.
Conclusiones:
- Este trabajo presenta una estrategia viable para crear precursores de alta conectividad para COF 3D.
- El desarrollo de 3D-nj-COF enriquece la diversidad estructural de los COF 3D y ofrece inspiración para el diseño de futuros materiales.
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