Synthesis And Catalytic Performance Of Pd/UiO-66-NH₂ And [Eu₂（TATAB）₂]

Metal Organic Framework materials（MOFs）is a novel type of porous material,which is composed of metal ions and organic ligands.MOFs have many advantages,for instance,the diversity of the structure,tunable pore size,high porosity and specific surface area,Therefore,they exhibit a variety of potential applications,such as gas separation and storage,catalysis,medicine slow release,chemical sensors,fluorescent materials and other fields.In the field of catalysis,MOFs also play a vital role.As catalyst,its active sites can exist in the organic ligands,metal ions or metal cluster nodes,also can introduce active sites in the pores or ligands of MOFs.As a result,MOFs can be designed with a certain catalytic active sites.In this paper,Pd/UiO-66-NH₂ and[Eu₂（TATAB）₂]₄·H₂O have been synthesized,and their structure,function and catalytic performance were studied.A series of nanocatalysts（Pd/UiO-66-NH₂）were synthesized by impregnation.They were analyzed by Powder X-ray diffraction（PXRD）,Fourier Transform Infrared（FT-IR）,Transmission Electron Eicroscopy（TEM）,Scanning Electron Microscopy（SEM）,Gas Adsorption and Element Analysis.Pd/UiO-66-NH₂ own excellently catalytic activity for styrene epoxidation.We also explored different Pd loadings,reaction temperature,solvent and the amount of co-catalyst affect for the reaction styrene epoxidation.[Eu₂（TATAB）₂]·4H₂O has been solvothermally isolated by employing Eu（NO₃）₃?6H₂O and H₃TATAB as precursors.This MOF own Lewis acid sites and Br?nsted acid sites.As a result,this MOF can as a heterogeneous Lewis acid and Br?nsted acid bifunctional catalyst.And this MOF possesses excellent activity for Deacetalization-Knoevenagel condensation reaction.