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Arc-produced short-length multi-walled carbon nanotubes as “millstones” for the preparation of graphene-like nanoplatelets
- Kostoglou, Nikolaos, Ryzhkov, Vladislav, Walters, Ian, Doumanidis, Charalabos, Rebholz, Claus, Mitterer, Christian
- Carbon 2019 v.146 pp. 779-784
- additives, blood platelets, carbon, carbon nanotubes, dispersions, milling, nanoparticles, oxygen
- Naturally short-length multi-walled Russian-doll-like carbon nanotubes derived by a catalyst-free arc-discharge method were used as nano-sized “cutters” to transform bulk graphitic sheets into thin/few-layered graphene-like nano-sized platelets (GNPs) during a jet milling procedure. A short follow-up oxygen plasma treatment in a plasma reactor further increases the number of smaller (i.e. ∼80 nm) and thinner nanoparticles (i.e. three-layered GNPs) as well as their oxygen content (i.e. up to ∼8 at.%). These oxygen-rich surface-functionalized GNPs are suitable additives for producing stable nanogels as demonstrated by the preparation of carbon ink dispersions.