XRD (IMAGE) Science China Press Caption (a) XRD pattern of the as-prepared sample indexed with amorphous and graphitized peaks. (b) Raman spectra of D, G, D+D'', 2D, D+G and 2D' bands. Credit ©Science China Press Usage Restrictions Use with credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.