金属有机骨架材料NH_2-UIO-66(Zr)及其后修饰材料的合成
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摘要
以2-氨基对苯二甲酸为有机配体,无水四氯化锆为金属前驱体,DMF为溶剂,通过溶剂热法合成具有优良稳定性的氨基取代的金属-有机骨架材料NH_2-UIO-66(Zr)。通过XPS和SEM表征其构成和微观形貌,SEM图显示为不规则的颗粒状物质,孔径在2~9μm。进一步在NH_2-UIO-66(Zr)上负载了Pd纳米颗粒形成Pd@NH_2-UIO-66(Zr)材料,金属有机骨架材料结构特征均保留下来,在催化剂方面有很好的发展潜力。
In this paper,2-amino-1,4-terephthalic acid as the organic ligand,anhydrous zirconium tetrachloride as the metal precursor,DMF as solvent,through solvent thermal synthesis with excellent stability amino replace metal-organic skeleton materials NH_2-UIO-66(Zr).By XPS characterization of the composition and chemical valence state,test results show the preparation of sample of the chemical composition is NH_2-UIO-66(Zr).SEM characterization of the microstructure,we can see the scanning electron microscopy(SEM)particles for irregular granular material,aperture size in 2~9 nanometers.By loading the Pd nanoparticles on NH_2-UIO-66(Zr),complete structure characteristics of NH_2-UIO-66(Zr)are kept into the production Pd@NH_2-UIO-66(Zr),which in the aspect of catalyst has very good development potential.
In this paper,2-amino-1,4-terephthalic acid as the organic ligand,anhydrous zirconium tetrachloride as the metal precursor,DMF as solvent,through solvent thermal synthesis with excellent stability amino replace metal-organic skeleton materials NH_2-UIO-66(Zr).By XPS characterization of the composition and chemical valence state,test results show the preparation of sample of the chemical composition is NH_2-UIO-66(Zr).SEM characterization of the microstructure,we can see the scanning electron microscopy(SEM)particles for irregular granular material,aperture size in 2~9 nanometers.By loading the Pd nanoparticles on NH_2-UIO-66(Zr),complete structure characteristics of NH_2-UIO-66(Zr)are kept into the production Pd@NH_2-UIO-66(Zr),which in the aspect of catalyst has very good development potential.
引文
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[2]Xiang Z,Peng X,Cheng X,et al.CNT@Cu3(BTC)2 and metalorganic frameworks for separation of CO2/CH4 mixture[J].JPhys Chem C,2011,115:19864-19871.
[3]O.M.Yaghi,H.L.Li,Hydrothermal Synthesisofa Metal-Organic Framework Containing Large Rectangular Channels[J].J.Am.Chem.Soc.1995,117(41):10401-10402.
[4]陈驰,庞军,韩爽,等.官能团修饰对MOF-5的气体分子吸附影响[J].物理化学学报,2012,28(1):189-194.
[5]DIPENDUSAHA,ZONGBIBAO,FENGJIA,etal.Adsorptionof CO2,CH4,NO2,and N2OnMOF-5,MOF-177,andZeolite5[J].Environ.Sci.Technol,2010(44):1820-1826.
[6]T.Hirao.Conjugated systems composed of transition rnetals and red OXactive conjugated ligands[J].Coord.Rev.2002,226:81-91.
[7]A.Togni.L.M.Venanzi,Nitrogen Donors in Organometallic ChemistU and Homogeneous Catalysis[J].Angew.Chem.Int.Ed.1994.33:497-526.
[8]TsuruokaT,KawasakiH,NawafuneH,etal.Controlled selfassembly of metal organic frameworks on metal nanoparticlesfor efficientsynthesisofhybridnanostructures[J].ApplMaterInterf,2011,3:3788-3791.