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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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Marco orgánico covalente tridimensional con enlaces duales para la catálisis en cascada bifuncional

Hui Li¹, Qinying Pan¹, Yunchao Ma¹

¹State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University , Changchun 130012, P. R. China.

Journal of the American Chemical Society

|October 19, 2016

Resumen

Los investigadores desarrollaron un nuevo método de doble enlace para crear marcos orgánicos covalentes 3D (COF). Estos materiales avanzados de COF exhiben una absorción de gases superior y una actividad catalítica bifuncional, ampliando sus aplicaciones.

Área de la Ciencia:

Ciencias de los materiales
Química de los polímeros
Nanotecnología

Sus antecedentes:

Las estructuras orgánicas covalentes (COF) son polímeros cristalinos porosos con un potencial de aplicación significativo.
La síntesis de COFs tridimensionales (3D) es limitada, con solo un tipo de enlace covalente previamente establecido para su construcción.
Los FOC 3D existentes no han respondido plenamente a las demandas de aplicaciones de materiales avanzados.

Objetivo del estudio:

Desarrollar una nueva estrategia sintética para la creación de diversos marcos orgánicos covalentes 3D (COF).
Investigar las propiedades de absorción de gas y las capacidades catalíticas de los COF 3D recién sintetizados.
Establecer una plataforma versátil para el diseño de arquitecturas COF 3D complejas.

Principales métodos:

Se utilizó una nueva estrategia sintética que empleaba enlaces covalentes duales.
Caracterización de los COF 3D resultantes para la porosidad y el área de superficie.
Evaluación de las capacidades de absorción de gases y de la actividad catalítica bifuncional en reacciones en cascada de un solo recipiente.

Principales resultados:

La estrategia de doble enlace produjo con éxito nuevos COF 3D.
Los COF 3D sintetizados demostraron una gran superficie específica y una capacidad de absorción de gas sustancial.
Estos materiales funcionan como catalizadores bifuncionales efectivos, que poseen sitios ácidos y básicos para las reacciones en cascada.

Conclusiones:

El método de doble enlace desarrollado ofrece un enfoque general y versátil para sintetizar COFs 3D sofisticados.
Los nuevos COF 3D representan una clase de material líder para aplicaciones de absorción de gases.
Este trabajo amplía significativamente las aplicaciones potenciales de los COF, particularmente en catálisis.

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