Fabrication of Hierarchical CuO Microspheres

摘要

Hierarchical microstractures of metal oxides comprised of nanoparticles,nanorods,and nanobelts as building blocks have been attracted great interests due to their novel structures,properties,and applications.1"7 In most systems,hierarchical assembly involves two distinct steps:1) synthesizing the appropriate precursors,and 2) assembling them into larger structures.Copper oxide (CuO) is a narrow band-gap semiconducting oxide that has been widely used in electrochemical cells,in photothermal and photoconductive materials,and as a heterogeneous catalyst.Various techniques have been used to synthesize CuO nanostructures such as nanoparticles,nanorods,nanobelts,nanoribbons and nanotubes.