synthesis and characterization of CdS based sulfide coaxial cable and nanotubes by sacrificial approach

摘要

Sulfide coaxial cable nanostructures and nanotubes, such as CuS nanotubes, CdS/CuS coaxial cable nanostructures, Ag_2S nanotubes, and CdS/ Ag_2S coaxial cable nanostructures have been prepared by a versatile and sacrificial approach based on substitution reaction and subsequent H_2SO_4 treatment. The morphology and structure of the nanomaterials have been characterized by X-ray powder diffraction (XRD), transmission electron microscopy (TEM) and selected area electron diffraction (SAED) pattern. Moreover, the formation mechanism for the sulfide coaxial cable nanostructures and nanotubes has been phenomenologically discussed.