Effective synthesis of well graphitized high yield bamboo-like multi-walled carbon nanotubes on copper loaded α-alumina nanoparticles

Product Selection Toward High-Value Hydrogen and Bamboo-Shaped Carbon Nanotubes from Plastic Waste by Catalytic Microwave Processing

“…Moreover, carbons exhibiting lower ID/IG values often indicate a reduced presence of structural defects and enhanced electrical conductivities . In the study conducted by Krishna et al, the intensity ratios of (ID/IG) were measured to be 1 and 1.05 for both pure and as-synthesized BCNTs, respectively. In the study conducted by Zhang et al, an ID/IG score of 1.77 indicated that the BCNTs had a high degree of structural flaws.…”

Plastic-derived substrate-grown carbon nanotubes as freestanding electrode for hydrogen evolution in alkaline media

“…15b,c) on the other hand, there was a mixture of hollow-core and There could be several reasons for the growth of bamboo-like nanotubes on the glass and carbon paper substrates. Since feedstock was the same mixture of plastics, it is likely the influence for growth of bamboo-like CNTs is due to the interaction mechanism between the catalyst, substrate support and hydrocarbon (Kumar & Ando, 2010;Mohana Krishna et al, 2014). The stacked arrangement is suggested to begin by the nucleation of the carbon cap below the catalyst particle while it detaches from the support.…”

“…As carbon diffusion increases into the catalyst particle, carbon is steadily added to the carbon cap, growing the nanotube. The carbon cap is then disconnected from the catalyst as a result of the internal stress accumulated, forcing the catalyst particle away, thereby creating a fresh catalytic surface for the nucleation of a new carbon segment shell (Giannakopoulou et al, 2021;Mohana Krishna et al, 2014). Another contributing factor could be the competition between surface and bulk diffusion of carbon in the catalyst particles (Bisht et al, 2015).…”