The rich nanostructural diversity of commecial zinc oxide, fabricated via French process, is investigated. FESEM images of ZnO nanostructures reveal nanorods, nanoplates, nanoboxes, nanomallets, microclusters, polyhedral drums and irregularly-shaped particles (ISPs). Due to nanoscopic inhomogeneity in crystallisation conditions, many types of ZnO nanostructures coexist (and codiffuse) even in a minute region of 1 μm3. The nanostructures generally grow in either the  or the  plane directions. EDS analysis reveals that hexagonal-like nanorods/drums possess higher oxygen-to-zinc atomic ratios than that of the rectangular-like nanoplates/boxes. A correlation between ZnO nanostructure and semiconducting varistors shows that nanorod-rich specimens exhibit superior nonlinearity but poorer energy handling.
|Journal||Synthesis and Reactivity in Inorganic, Metal-Organic and Nano-Metal Chemistry|
|Publication status||Published - 2006|