Sugarcane waste based synthesized graphene like nanocarbon (GNC) for shock absorption application

We report on the synthesis, characterization, and shock absorption characteristics of Graphene like Nano Carbon (GNC) prepared by the combustion of biomass (sugarcane waste) using the Rapid Thermal Chemical Vapor Deposition (RT-CVD) technique. Post synthesis, the samples were purified by subjecting them to intercalation and annealing. The synthesised GNCs were then characterised by Raman, Infrared, and UV spectroscopy, together with microscopy. In analysis, the GNCs were observed to be rectangular in shape, thick, having sharp edges and corners, and having an area similar to 50-200 mu m(2) with wrinkles on it. TEM images showed that GNCs exhibit smooth wrinkle contours with bits of dark showing conjugated graphene layers stacked together having multiple defects and dislocations. In Raman spectroscopy, D peak is observed at similar to 1335 cm(-1 )and G peak is observed at similar to 1591 cm(-1) indicating GNC consists of sp(2) and sp(3) hybridised complex phases. The Crystalline Length (L-a), Disordered Length (L-D) and Defect Density (n(D)) have been estimated to be 21.26 nm, 9.60 nm and 1.084 x 10-12/cm(2) respectively. FTIR spectra revealed that C-C is present at similar to 1420 cm(-1) and C-O-C is present at 900 cm(-1). In Uv measurements, no typical absorption peak was observed due to the micrometre size of GNC. The shock absorption properties of GNCs were investigated by subjecting them to pressure (similar to 1.5 GPa) using a Split Hopkinson Pressure Bar (SHPB). The obtained mechanical parameters revealed that GNCs absorbed similar to 65% of incident energy and similar to 15% transmitted, demonstrating their utility in the development of armour, shock and blast mitigating blocks, defense, and space applications.

Automated summary

This study reports on the synthesis, characterization, and shock absorption characteristics of Graphene like Nano Carbon (GNC) prepared through the combustion of biomass using Rapid Thermal Chemical Vapor Deposition (RT-CVD) technique. The GNCs were found to be rectangular in shape, thick, with sharp edges and corners, and containing wrinkles on the surface. Raman, Infrared, and UV spectroscopy, as well as microscopy, were used to characterize the GNCs. The shock absorption properties of GNCs were investigated and it was found that they absorbed around 65% of incident energy, making them suitable for applications in armor, shock and blast mitigation, defense, and space.