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Large-Scale Synthesis and Catalytic Properties of Nearly Monodispersive Nickel 3D Nanostructures
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Supported by the Basic Research Program of Education Department of Henan Province (2009104790014)

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    Abstract:

    Nearly monodispersive nickel 3D nanostructures were synthesized using a improved hydrothermal route with poly-(N-vinyl-pyrrolidone) as capping reagent. The obtained products were characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), and field-emission scanning electron microscopy (FE-SEM). Results reveal that cubic nickel crystals possess flower-like 3D nanostructures with nanospearheads growing radially from the core and a uniform diameter of about 1.5 μm. These nanospearheads have almost uniform shapes: the root in (120±20) nm, the tip in (15±5) nm, the length in (400±50) nm, and the thickness in (10±2) nm. Contrast experiments demonstrate that flower-like shape of nickel 3D nanocrystals is controlled by the cooperative effects of time, temperature and surfactant. The good catalytic effects indicate these flower-like nickel 3D nanocrystals are likely to be applied as a better catalyst in the future.

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[Li Qiang, Du Weimin. Large-Scale Synthesis and Catalytic Properties of Nearly Monodispersive Nickel 3D Nanostructures[J]. Rare Metal Materials and Engineering,2009,38(12):2080~2084.]
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  • Received:November 23,2008