树枝状钯纳米结构的控制合成及硝基苯加氢反应的催化活性

doi:10.3866/PKU.WHXB201207031

Abstract

Abstract:

Branched palladium nanostructures were synthesized under microwave irradiation using polyvinylpyrrolidone (PVP) as stabilizer and benzyl glycol as the reducing agent of H₂PdCl₄. Morphology and structure were characterized by transmission electron microscopy (TEM), X-ray powder diffraction (XRD), and X-ray photoelectron spectroscopy (XPS), and showed that the branched Pd nanostructures were self-assemblies of hundreds of small spherical nanoparticles. Furthermore, catalytic properties of the branched Pd nanostructures were investigated for the hydrogenation of nitrobenzene, which indicated that the catalytic activity of the branched Pd nanostructures for this reaction is higher than that of a conventional Pd/C catalyst.

Key words: Palladium, Nanostructure, Microwave irradiation, Hydrogenation of nitrobenzene, Growth process

MSC2000:

O647

XIE Ting, LIU Hao-Wen, YANG Han-Min. Control Synthesis of Branched Palladium Nanostructures and the Catalytic Activity on Hydrogenation Reaction of Nitrobenzene[J].Acta Phys. -Chim. Sin., 2012, 28(09): 2209-2213.

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Control Synthesis of Branched Palladium Nanostructures and the Catalytic Activity on Hydrogenation Reaction of Nitrobenzene

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