Figure 7
(a) XRD patterns of powder samples C1, B5 and B11 of CeO2 NPs with Cu Kα radiation. A simulated pattern (L30) for a monodisperse system of cubic NPs of edge L = 30 nm is also shown as a reference, Cu Kα1 only, and 〈dr〉rms = 1.4 pm in the virtual NP is used to compute the Ce–Ce, Ce–O and O–O PDDFs in equations (5) and (6). (b), (c) SEM images and histograms (insets) of apparent size distribution for each powder sample as indicated. |