Surfactant-Free Palladium Nanoparticles Encapsulated in ZIF-8 Hollow Nanospheres for Size-Selective Catalysis in Liquid-Phase Solution
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- 作者：Xiaoshi Wang ; Mingyu Li ; Dr. Changyan Cao ; Chang Liu ; Jian Liu ; Yanan Zhu ; Sidi Zhang and Prof. Dr. Weiguo Song
- 刊名：ChemCatChem
- 出版年：2016
- 出版时间：October 20, 2016
- 年：2016
- 卷：8
- 期：20
- 页码：3224-3228
- 全文大小：1510K
- ISSN：1867-3899
文摘
Encapsulation of surfactant-free Pd nanoparticles (NPs) in the metal–organic framework material ZIF-8 hollow nanospheres was achieved. Pd@ZIF-8 hollow nanospheres showed excellent size-selective catalytic properties in the liquid-phase hydrogenation of olefins. As a result of the uniform pore size of the ZIF-8 shell (apertures of 3.4 Å), the catalyst showed high activity for the hydrogenation of 1-hexene (1.9×8.2 Å) but very low activity for larger molecules such as cis-cyclooctene (5.3×5.5 Å), trans-stilbene (4.2×11.3 Å), and triphenylethylene (9.1×9.2 Å). Other surfactant-free noble-metal nanoparticles could also be employed to produce NPs@MOFs for catalysis.