Preparation of ZnO nanoparticles localized on SiC@SiO2 nanocables by a physical templating method

• Published in: Journal of the European Ceramic Society Vol. 29; no. 5; pp. 863 - 867
• Main Authors: Bechelany, M., Toury, B., Brioude, A., Bernard, S., Cornu, D., Miele, P.
• Format: Journal Article
• Language: English
• Published: Elsevier 01-03-2009
• Subjects: Chemical Sciences; Condensed Matter; Engineering Sciences; Inorganic chemistry; Material chemistry; Materials; Materials Science; Micro and nanotechnologies; Microelectronics; Physics; Nanowire; Nanocable; ZnO; SiC; Nanoparticle; Physical templating
• ISSN: 0955-2219; 1873-619X
• DOI: 10.1016/j.jeurceramsoc.2008.07.010

Impregnation of interlaced SiC@SiO2 nanocables (SiC NWs sheathed by SiO2 coatings) into a ZnO sol at 0 C yielded, after thermal treatment up to 600 C in argon, SiC@SiO2@ZnO nanostructures. These novel nanostructures consisted of SiC@SiO2 nanocables covered by numerous agglomerated ZnO nanoparticles. The latter were < 5 nm in diameter. This result is the first example of a physical templating technique involving SiC-based nanowires. Localised ZnO nanoparticles have also been obtained. This localisation can be of interest for further study of their physical properties. When a similar experiment was conducted with pure SiC nanowires, there was no interaction between the nanowires (NWs) and the solution, resulting in the formation of agglomerated ZnO nanoparticles embedded in the 3D NW network.