Cell morphology sample preparation approaches

In order to gain information on the crystalline particle size of the samples, a comparison of the SEM profiles was also made. As shown in Fig. 1, it can be seen that the difference in morphology of the samples prepared by the different methods is quite obvious. For example, samples A, C, D and F. However, there is no parallel relationship between the lattice parameter and the particle size, as also shown in Table 1. This is because the accommodation of the crystal cells to form so-called secondary accommodated phases may be quite different in samples synthesized by different approaches [2,3]. It shows that some crystalline samples with the same lattice parameter can manage to form either larger crystalline particles or smaller secondary particles, depending on the preparation conditions. Table 1 also shows that for sample D, the crystalline size is minimum and the corresponding lattice distorsion degree is maximiun. 

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