A comparison of these micrographs reveals that the glycine in ratio of 2 resulted in a lower particle size and homogeneity, while the powder prepared by the urea showed a relatively larger particle size, some agglomeration and inhomogeneity in shape and size is observed. The average particle size of LaCoO₃ synthesized by glycine is below 70 nm with a spherical shape, whereas the powder made of urea process has a broader particle size distribution and inhomogeneity in shape. However, SEM results are contradictory to the results of crystallite size estimation (see Table 2). Particle size is different from crystallite size suggesting that the particles have multi-crystalline structure. A particle may be made up of several different crystallites.