Figure 5
(a) BF micrograph of a CeO2 nanoparticle aggregate. (b) Corresponding DF micrograph. (c) Threshold of the DF micrograph shown in (b). (d) Histogram of the size distribution of crystallites, used to determine an average size of 135 Å. (e) High-magnification image with 14 marked crystallite domains that were clearly visible. These were used to estimate the average crystallite size. |