The Research on Ultrafine Carbon Powders Prepared by Sol-Gel Method using Raman Spectra and XRD

The primary ultrafine carbon powders were prepared by sol gel supercritical fluid drying method using different raw materials. After heat treatment under argon atmosphere at 1 100 ℃ and 2 600 ℃ respectively, the ultrafine carbon powders were obtained. The properties of primary ultrafine carbon powders and their annealed products were characterized by XRD and Raman spectra. The results reveal that raw materials have influence on the structure of ultrafine carbon powders.