Carbon Structure in Blast Furnace Dusts Characterized by Raman Spectroscope and its Links with Combustion Reactivity

Silicon Oxycarbide-Graphite Electrodes for High-Power Energy Storage Devices

“…Two characteristic bands in the first-order spectra, namely the D-band at approximately 1333 cm −1 , and the G-band at 1575 cm −1 , representing disordered and graphitic carbon, respectively, appear for all of the investigated composites. In order to perform a quantitative analysis of the measured spectra, we deconvoluted the first-order Raman signals into five peaks ( Figure 4 b–e), namely D1, D2, D3, D4 and G according to [ 61 , 62 ].…”

“…The G band was deconvoluted into a G peak, arising from stretching vibrations of the sp 2 -carbon bond in the ideal graphitic lattice (E 2g symmetry), and a D2 peak, related to the defected graphitic lattice (also E 2g symmetry) [ 61 , 64 , 65 ] and Stone–Wales defects [ 68 ], which is also present in the deconvoluted spectrum of the pure graphite sample ( Figure S3a in Supplementary Materials ). Moreover, between the D1 and G bands another band, namely a D3 band at ~1525 cm −1 , sp 2 amorphous forms of carbon [ 61 , 62 ], is detected. Detailed information on band parameters is given in Table 3 and Table S1 in the Supplementary Materials .…”