142
8 Molten Salt-Assisted Preparation of Nanodiamonds at Atmospheric …
Fig. 8.1 Bond and atomic structure of a graphite and b diamond. c P–T phase diagram of elemental
carbon, reproduced from Ref. [1], copyright 2019, with permission from Elsevier
the sp
2 hybridized carbon layers. In contrast, in diamond, carbon atoms are sp
3 -
hybridized, so that all four valence electrons in each carbon atom are localized in
single bonds between atoms. Consequently, diamond possesses an extremely high
hardness and thermal conductivity. However, since electrical conductivity is based
on the flow of free electrons, diamond is electrically an insulator.
8 Molten Salt-Assisted Preparation of Nanodiamonds at Atmospheric …
Fig. 8.1 Bond and atomic structure of a graphite and b diamond. c P–T phase diagram of elemental
carbon, reproduced from Ref. [1], copyright 2019, with permission from Elsevier
the sp
2 hybridized carbon layers. In contrast, in diamond, carbon atoms are sp
3 -
hybridized, so that all four valence electrons in each carbon atom are localized in
single bonds between atoms. Consequently, diamond possesses an extremely high
hardness and thermal conductivity. However, since electrical conductivity is based
on the flow of free electrons, diamond is electrically an insulator.