COFs on MOFs: Layer-by-layer synthesis of MOF@COF nanoparticles with synergistic adsorption

Synergistic effects between porous materials offer a powerful route to enhance key functionalities such as adsorption, catalysis, and molecular transport. In this context, the combination of metal–organic frameworks (MOFs) and covalent organic frameworks (COFs) provides a promising platform for engi...

Full description

Bibliographic Details
Authors: Guillem-Navajas, Ana; Torrico-García-Viso, Lucía; Suárez del Pino, José Antonio; Aramburu-Merino, Nekane; Segovia Cabrero, María Pilar; García Michel, Enrique; Puigmartí-Luis, Josep; Velasco Caravaca, Enrique; Tarazona Lafarga, Pedro José; Maspoch, Daniel
Format: Article
Publication date:2025
Country:España
Institution:Universidad Autónoma de Madrid
Repository:Biblos-e Archivo. Repositorio Institucional de la UAM
Language:English
OAI Identifier:oai:repositorio.uam.es:10486/738420
Online Access:https://hdl.handle.net/10486/738420
https://dx.doi.org/10.1002/adma.202514548
Access Level:Open access
Keyword:covalent organic frameworks
interphases
metal–organic frameworks
nanocomposites
synergistic molecular adsorption
water adsorption
Química
Description
Summary:Synergistic effects between porous materials offer a powerful route to enhance key functionalities such as adsorption, catalysis, and molecular transport. In this context, the combination of metal–organic frameworks (MOFs) and covalent organic frameworks (COFs) provides a promising platform for engineering hybrid adsorbents with synergistic sorption behavior. Here, a versatile layer-by-layer strategy is presented for the controlled growth of crystalline COF shells on MOF nanoparticles, yielding uniform MOF@COF nanocomposites as stable aqueous colloids. This approach enables precise tuning of shell thickness and porosity under mild conditions. The resulting core–shell hybrids exhibit enhanced water adsorption, driven by the formation with the intrinsic micropores of the COF shell of interfacial mesopores. Modeling studies indicate that a minimum number of COF growth cycles is necessary to induce these mesopores, which nterconnect and facilitate synergistic uptake. This work presents a scalable and modular approach to creating porous hybrid nanoparticles with programmable interfacial architectures and enhanced sorption performance