Fig. 5. A plot of free-carbon cluster size as a function of pyrolysis temperature for the AC-modified SiCN.Figure optionsDownload full-size imageDownload as PowerPoint slide
Further characterization of the free carbon phase was carried out using XPS analysis. Fig. 6 shows a typical XPS spectrum of the C1s BX-795 state for the AC-modified SiCN obtained at 1200 °C. It is seen that the spectra can be split into three peaks using the Gaussian/Lorentzian sum function that are centered at 283, 284 and 285 eV, corresponding to C–Si, CC, and C–C bonds, respectively , , , ,  and .