Recent progress and perspectives in single-digit nanodiamond
Abstract
Problems associated with the final stages in the disintegration/purification of detonation nanodiamond (DN) into monodisperse single-nanodiamond (DSND) particles are critically reviewed. Milling with zirconia beads seems to be an effective and safe method of disintegrating DN agglutinates. Two undesirable side effects of beads-milling have been identified: contamination with zirconia and generation of graphitic layers on the particle surface. A simple measure to overcome these ill effects has been suggested. Possible pitfalls that we might encounter during the search of industrial application of DSND are identified: low diamond-graphite transition temperature, and abnormally strong tendency of the dispersed primary particles to re-aggregate. Distinct non-freezing layers of adsorbed water were detected to exist on the surface of DSND, which could be both an advantage and a disadvantage in the application.
- Publication:
-
Diamond and Related Materials
- Pub Date:
- 2007
- DOI:
- 10.1016/j.diamond.2007.08.008
- Bibcode:
- 2007DRM....16.2018O
- Keywords:
-
- Monodisperse single-nanodiamond particles;
- Agglutination in detonation nanodiamond;
- Purification/disintegration