A general, reproducible, and simple synthetic method that employs readily available chemicals permits control of the size, shape, and size distribution of metal oxide nanocrystals. The synthesis entails reacting a metal fatty acid salt, the corresponding fatty acid, and a hydrocarbon solvent, with the reaction product being pyrolyzed to the metal oxide. Nearly monodisperse oxide nanocrystals of Fe3O4, Cr2O3, MnO, Co3O4, NiO, ZnO, SnO2, and In2O3, in a large size range (3-50 nm), are described. Size and shape control of the nanocrystals is achieved by varying the reactivity and concentration of the precursors.
Chemistry & Biochemistry
Board of Trustees of the University of Arkansas (Little Rock, AR)
Peng, X., Chen, Y., Jana, N., & Narayanaswamy, A. (2009). Synthetic control of metal oxide nanocrystal sizes and shapes. Patents Granted. Retrieved from https://scholarworks.uark.edu/pat/91