On the Nature of Simultaneous Formation of Nano- and Micron-Size Diamond Fractions under pressure–temperature-induced transformations of Binary Mixtures of Hydrocarbon and Fluorocarbon Compounds - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Carbon Année : 2015

On the Nature of Simultaneous Formation of Nano- and Micron-Size Diamond Fractions under pressure–temperature-induced transformations of Binary Mixtures of Hydrocarbon and Fluorocarbon Compounds

V.A. Davydov
  • Fonction : Auteur
A.V. Rakhmanina
  • Fonction : Auteur
V.N. Khabashesku
  • Fonction : Auteur

Résumé

Based on comparative studies of pressure–temperature-induced transformations of naphthalene, octafluoronaphthalene, and their binary mixtures, the nature of formation of nano- and micron-size diamond fractions in the products of transformations of hydrocarbons and fluorocarbons has been revealed. It was found that the main reason for the massive formation of nano-size diamonds is the specifics of carbonization of fluorocarbon compounds under pressure. In this particular process, micron-size particles of graphite are formed simultaneously with a significant amount of closed two- to five-layered carbon nanoparticles of 5–15-nm size, acting as precursors for the formation of nano-size diamond fractions. The obtained results open up a new avenue for the metal catalyst-free synthesis of nano/micron-size fractions of pure and doped diamonds.
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hal-01718985 , version 1 (27-02-2018)

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V.A. Davydov, A.V. Rakhmanina, V. Agafonov, V.N. Khabashesku. On the Nature of Simultaneous Formation of Nano- and Micron-Size Diamond Fractions under pressure–temperature-induced transformations of Binary Mixtures of Hydrocarbon and Fluorocarbon Compounds. Carbon, 2015, 90, pp.231--233. ⟨10.1016/j.carbon.2015.03.055⟩. ⟨hal-01718985⟩
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