First- and second-order resonant Raman scattering in graphite

Local structure in the Li-ion battery cathode material Lix(MnyFe1−y)PO4 for 0<x≤1 and y=0.0, 0.5 and 1.0

“…These vibrational modes correspond to the in-plane motion of the carbon atoms and have been observed at 42 and 1581 cm −1 (G band) [44]. Several researchers have reported additional bands in the Raman spectrum of microcrystalline graphite between 1318 and 1355 cm −1 (D band) and at 1623 cm −1 (D' band) [43][44][45][46]. These bands are thought to be non-Brillouin-zone-center phonons arising from the crystal boundary regions in the microcrystalline graphite.…”

Characteristics of lithium iron phosphate mixed with nano-sized acetylene black for rechargeable lithium-ion batteries

“…E 1u ? 2E 2g ) [35], and the E 2g modes at 42 and 1581 cm -1 are Raman-active [36]. G band (1585 cm -1 ) is assigned to the E 2g graphite mode, and D band (1338 cm -1 ) is associated to A 1g mode, which is related to the breakage of symmetry occurring at the edges of graphite sheets [37].…”

Formation of filamentous carbons over supported Fe catalysts through methane decomposition

“…1350 cm −1 (D band) and 1580 cm −1 (G band). The G band can be attributed to the in-plane carbon-carbon stretching vibrations of graphite layers and the D band is ascribed to structural imperfection of graphite [37,38]. In addition, a shoulder peak in the G band was found at ca.…”