Raman analysis of carbon materials

Measure the Raman spectrum! It is possible to obtain information about the structure and crystallinity of carbon materials.

Carbon materials include various types such as graphite, activated carbon, and carbon fibers, and are widely used in applications such as the active materials for the negative electrode of lithium-ion batteries, additives for conductive plastics, inks, and CFRP. Our company evaluates the structural differences of carbon materials using Raman analysis. In the case of carbon black (CB) and activated carbon, the G band peak becomes broader compared to graphite, and the full width at half maximum increases. This indicates that the crystallite sizes are different, with graphite having a larger crystallite size than CB and activated carbon. **Differences in Raman spectra due to carbon materials:** - Graphite shows a strong and sharp G band around 1580 cm-1. - It indicates the disruption of the hexagonal ring structure, which is the unit cell of graphite, and that the layered structure is more disordered. - In CB and activated carbon, the G band peak is broader compared to graphite, with a larger full width at half maximum. - Graphite has a larger crystallite size than CB and activated carbon. *For more details, please refer to the PDF document or feel free to contact us.*

Measurement and Analysis EquipmentOther services and technologies