Precisely Size-controlled Metal Nanoparticles (Au, Pd and Pt) Inserted into Metal-Organic Frameworks (MOFs):Synthesis and Catalytic Properties

摘要

Metal organic frameworks (MOFs) have attracted muchnattention in the past decade due to their high porosity and highnspecific surface area making them suitable for many applications,nincluding gas storage, separations, and catalysis1-7. For the latter, thenunique structure of MOFs, resulted from the combination of the longrangenorder of a solid-state template material with a tunablendimensionality and chemical tailoring of the inner surface of thenchannels and cavities, makes them promising candidates fornembedding and supporting functional nanomaterials. A number ofnfunctional nanoparticles for embedding, e.g. Cu, Ru, Pd, Au, Ag andnPt metal nanoparticles, into the cavities of MOFs, are relevant fornmany applications, especially for heterogeneous catalysis, have beennachieved by using various preparation methods. These methodsninclude gas-phase infiltration, solid grinding (SG), and solutionnimpregnation8-15. In many cases, the resulting metal@MOFs catalystsnexhibited unique catalytic activity16