Effect of oxidation temperature on Raman spectra of graphite samples

The recent work investigates the relationship between the characteristics of the Raman spectra and the oxidation temperature of thermal-treated graphite samples in air at various temperatures ranging from 200degree celsiusCto 800 degree celsius. Our findings indicate that thermal oxidation of graphite in air leads to the enhancement of the 2D vibration pattern while reducing the intensity of the D vibration pattern. Moreover, we report that chemical reduction begins at 550 degree celsius. Furthermore, our results demonstrate that thermal oxidation causes a decrease in the disorder within the samples.