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Updated: Sep 14, 2025
Author Spotlight: Functionalizing Metal-Organic Frameworks: Advancements, Challenges, and the Power of Post-Synthetic Ligand Exchange
Published on: June 23, 2023
A Polymer-Oriented Synthesis Of Triazinyl Functionalized Mesoporous Organic Polymer Encapsulating Uitrafine Metal
Rui Zhang1, Shaohang Zheng1, Luoqi Wang1
1State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, Jilin, 130012, China.
Abstract:
Preparation of highly dispersed ultrafine metal clusters (MCs)- based catalysts with good stability and preeminent catalytic performance is a challenging problem for heterogeneous catalysis. Herein, we design and controllably synthesize a triazinyl functionalized mesoporous organic polymer (TRI-MOP) through a polymer-oriented synthesis strategy using polyethyleneimine (PEI) as pore-forming agent. The obtained TRI-MOP material possesses abundant worm-like mesopores, rich triazinyl groups, and high stability. Ultrafine Pd clusters with a small size (≈0.76 nm) are successfully anchored in the mesoporous channel of TRI-MOP by a simple impregnation-reduction approach. The as-prepared Pd@TRI-MOP catalyst exhibits excellent catalytic activity (96%) and selectivity (97%) in the semi-hydrogenation of phenylacetylene under very mild reaction conditions. The exceptional performance of Pd@TRI-MOP catalyst is attributed to the small size effect of Pd clusters, the electron coupling effect between the supports and the Pd and enriched meso-scaled pores. Therefore, this work provides a new platform for designing and preparing stable functional porous organic polymer materials to confine size-controlled MCs with superior catalytic performance for diversified potential catalysis applications.
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