Tailored 3D CuO Nanogrid Formation

[摘要] This paper reports on the controlled synthesis of 3D CuO nanogrids by the combined use of electrospinning and thermal oxidation of a composite metal mesh/polymer mat architecture. The obtained nanogrids result from three steps encompassing: (i) Cu atom clusters diffusing into the nanofibers producing polymer-metal “core-shell”-type fibers (ii) decomposition of the polymeric shell; (iii) oxidation of the metallic core of the nanofibers to form self-supported, opennanogrids consisting of continuous nanofibers of CuO nanoparticles with an average diameter of 20 nm. The calculated band gap energy of the cupric oxide nanogrids was determined from the UV-Vis spectrum to be 1.32 eV. The unique 3D CuO nanogrids may be used as key components of 3D nanobatteries, photocatalysts, and p-type chemosensors.

[学科分类] 材料工程