Synthesis and characterization of hollow LiNiO2 fibers via sol-electrospinning method

Hollow LiNiO2 fibers have been prepared with a capillary spinneret electrospinning technique combined with the sol-gel method, and the possible mechanism for the fabrication of the hollow fibers was discussed. The xerogel fibers and those calcined at different temperatures were characterized by thermogravimetric (TG) analysis, X-ray diffractometry (XRD), Fourier transform infrared (FT-IR) spectrum, transmission electron microscopy (TEM), scanning electron microscopy (SEM) and etc. The Polyvinyl Pyrrolidone (PVP) has an important role in the formation of hollow LiNiO2 fibers.