Abstract
Metal-organic frameworks (MOFs) as selectivity regulators for catalytic reactions have attracted much attention, especially MOFs and metal nanoparticle (NP) shelled structures, e.g., MOFs@NPs@MOFs. Nevertheless, making hydrophilic MOF shells for gathering hydrophobic reactants is challenging. Described here is a new and viable approach employing conjugated micro- and mesoporous polymers with iron(III) porphyrin (FeP-CMPs) as a new shell to fabricate MIL-101@Pt@FeP-CMP. It is not only hydrophobic and porous for enriching reactants, but also possesses iron sites to activate C=O bonds, thereby regulating the selectivity for cinnamyl alcohol in the hydrogenation of cinnamaldehyde. Interestingly, MIL-101@Pt@FeP-CMPsponge can achieve a high turnover frequency ( 1516.1 h-1 ), with 97.3 % selectivity for cinnamyl alcohol at 97.6 % conversion.
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