Controllable Encapsulation of “Clean” Metal Clusters within MOFs through Kinetic Modulation: Towards Advanced Heterogeneous Nanocatalysts |
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| Authors: | Dr. Hongli Liu Lina Chang Cuihua Bai Liyu Chen Prof. Rafael Luque Prof. Yingwei Li |
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| Affiliation: | 1. School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China;2. Departamento de Química Orgánica, Universidad de Córdoba, Córdoba, Spain |
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| Abstract: | Surfactant‐free tiny Pt clusters were successfully encapsulated within MOFs with controllable size and spatial distribution by a novel kinetically modulated one‐step strategy. Our synthesis relies on the rational manipulation of the reduction rate of Pt ions and/or the growth rate of MOFs by using H2 as assistant reducing agent and/or acetic acid as MOF‐formation modulator. The as‐prepared Pt@MOF core–shell composites exhibited exceedingly high activity and excellent selectivity in the oxidation of alcohols as a result of the ultrafine “clean” Pt clusters, as well as interesting molecular‐sieving effects derived from the outer platinum‐free MOF shell. |
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| Keywords: | encapsulation heterogeneous catalysis metal clusters metal– organic frameworks platinum |
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