Auger electron spectroscopy study of the chemical state of carbon atoms on the surface of nanodiamond particles is performed. Auger spectra of nanodiamond particles indicate that carbon atoms in nanodiamond are in the same state as those in graphite, i.e., in the σ s 1 σ p 2 π1 state, but the π band is displaced 1 eV in energy below the Fermi level. The surface of nanodiamond particles is inert with respect to the ambient medium.
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Dement’ev et al. (2004) studied this question.
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