Preparation of ceria and yttria nanopowders via thermal decomposition of oxalates, carbonates, and hydroxides

Ceria and yttria nanopowders have been prepared through thermal decomposition of various precursors. The nature of precursors has been shown to have a significant effect on the microstructure of the powders. The stability of the powders to particle (crystallite) growth has been studied as a function of heat-treatment temperature and duration.