催化作用
光热治疗
材料科学
复合数
金属有机骨架
纳米材料
等离子体子
纳米技术
金属
化学工程
辐照
纳米晶
光催化
光化学
光热效应
吸附
化学
光电子学
有机化学
复合材料
物理
工程类
冶金
核物理学
作者
Qihao Yang,Qiang Xu,Shu‐Hong Yu,Hai‐Long Jiang
标识
DOI:10.1002/anie.201510655
摘要
Abstract Composite nanomaterials usually possess synergetic properties resulting from the respective components and can be used for a wide range of applications. In this work, a Pd nanocubes@ZIF‐8 composite material has been rationally fabricated by encapsulation of the Pd nanocubes in ZIF‐8, a common metal–organic framework (MOF). This composite was used for the efficient and selective catalytic hydrogenation of olefins at room temperature under 1 atm H 2 and light irradiation, and benefits from plasmonic photothermal effects of the Pd nanocube cores while the ZIF‐8 shell plays multiple roles; it accelerates the reaction by H 2 enrichment, acts as a “molecular sieve” for olefins with specific sizes, and stabilizes the Pd cores. Remarkably, the catalytic efficiency of a reaction under 60 mW cm −2 full‐spectrum or 100 mW cm −2 visible‐light irradiation at room temperature turned out to be comparable to that of a process driven by heating at 50 °C. Furthermore, the catalyst remained stable and could be easily recycled. To the best of our knowledge, this work represents the first combination of the photothermal effects of metal nanocrystals with the favorable properties of MOFs for efficient and selective catalysis.
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