Confining Functional Nanoparticles into Colloidal Imine‐Based COF Spheres by a Sequential Encapsulation–Crystallization Method

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Abstract
Here, a two‐step method is reported that enables imparting new functionalities to covalent organic frameworks (COFs) by nanoparticle confinement. The direct reaction between 1,3,5‐tris(4‐aminophenyl)benzene and 1,3,5‐benzenetricarbaldehyde in the presence of a variety of metallic/metal‐oxide nanoparticles resulted in embedding of the nanoparticles in amorphous and non‐porous imine‐linked polymer organic spheres (NP@a‐1). Post‐treatment reactions of NP@a‐1 with acetic acid under reflux led to crystalline and porous imine‐based COF‐hybrid spheres (NP@c‐1). Interestingly, Au@c‐1 and Pd@c‐1 were found to be catalytically active.
Funding Information
  • Ministerio de Economía y Competitividad (MAT2016-77608-C3-1-P, MAT2015-65354-C2-1-R)

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