期刊
CHEMICAL SCIENCE
卷 5, 期 10, 页码 3708-3714出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4sc01847h
关键词
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资金
- National Natural Science Foundation of China [21322606]
- Fundamental Research Funds for the Central Universities [2013ZG0001]
- Guangdong Natural Science Foundation [S2011020002397, 10351064101000000]
- Consejeria de Ciencia e Innovacion, Junta de Andalucia [P10-FQM-6711]
A novel synthesis strategy is developed to encapsulate palladium precursors through ligand design prior to MOF assembly, achieving uniformly distributed palladium NPs inside the cavities of MOFs. This strategy can avoid the different diffusion resistance between external and internal surfaces, and thus allow metal precursors to be easily deposited into the pores and evenly distributed within MOF networks. The embedded Pd NPs exhibited excellent shape-selectivity in olefin hydrogenation, as well as high catalytic efficiencies in aerobic oxidation of alcohols and reduction of nitrobenzene, showing significantly enhanced catalytic activity and stability as compared to those synthesized using a traditional impregnation method. The superior catalytic activity and stability came from the synergetic effects of nano-confinement and electron-donation offered by the MOF framework.
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