Carbide-derived carbon (CDC) was prepared by the chlorination of the 10 h milled SiC powder at 800°C. The microstructure of the produced carbon was analyzed by High-resolution Transmission Electron Microscope. The results show that there exist a large number of hollow carbon onions in the resultant CDC. Interestingly, all of these hollow carbon onions possess larger lattice spacing. The formation of such carbon onions can be attributed to the existence of the Fe in the SiC grain boundaries. Furthermore, the possible mechanism for the formation of the hollow carbon onions with larger lattice spacing was discussed in this article.
All Science Journal Classification (ASJC) codes
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering