Keyword: «annealing»

INFLUENCE OF THERMAL TREATMENT ON THE RAMAN SPECTRA OF DETONATION NANODIAMONDS

Authors:

Mariya Akimova,

Anastasiya Sivceva,

Petr Sharin,

Sofya Yakovleva

The effect of thermal treatment on the Raman spectra of detonation nanodiamonds was investigated in comparison with those of natural nanodiamonds. It was found that annealing in air at 430–550 °C leads to the appearance of a distinct diamond peak at 1328 cm⁻¹ and a decrease in the intensity of disordered carbon bands. Thermal treatment reduces the fraction of sp²-hybridized carbon atoms and improves the stability of nanodiamond particles in aqueous suspensions.

Keywords: raman spectroscopy, detonation nanodiamonds, thermal treatment, carbon structure, annealing