Table 1 Unit cell parameters (a, c), crystal cell volume (V), as well as refined factor (Rw) for the nanocomposite α-Fe2O3/γ-Fe2O3
Cell parameters | Phase | |||||||
|---|---|---|---|---|---|---|---|---|
Sample | Hematite α-Fe2O3 | Maghemite γ-Fe2O3 | α-Fe2O3 (%) | γ-Fe2O3 (%) | Rw | |||
a (Ã…) | c (Ã…) | V (Ã…3) | a (Ã…) | V (Ã…3) | ||||
s.c. | 5.038 (2) | 13.772 (1) | 302.72 (3) | 8.3474 (2) | 581.64 (2) | – | – | – |
Composite | 5.037 (1) | 13.760(0) | 302.35 (6) | 8.3520 (8) | 582.61 (8) | 15.34 | 84.66 | 0.86 |