Table 1.
Crystallite characteristics and micro-strain values calculated from XRD data of MnO2 and Co3O4/MnO2 nanocomposites.
| Nanomaterials | δ × 103 (nm−2) | Crystal systems | Intercept | Crystallite size (nm) |
Strain(ε) (W–H plot) |
|
|---|---|---|---|---|---|---|
| Sherrer | W–H | |||||
| MnO2 | 199.29 | Hexagonal | -0.0969 | 2.24 | 1.43 | 0.17038 |
| Co3O4/MnO2 -1-5 | 28.82 | Tetragonal & Cubic | -0.02459 | 5.89 | 5.63 | -5.05873 |
| Co3O4/MnO2 -1-4 | 34.29 | Tetragonal &Cubic | -0.07731 | 5.4 | 1.79 | -0.02941 |
| Co3O4/MnO2 -1-3 | 43.40 | Complex tunnel, Tetragonal & Cubic | 0.04706 | 4.8 | 2.94 | 0.01613 |
| Co3O4/MnO2 -1-2 | 59.49 | Tetragonal & Cubic | -0.12931 | 4.1 | 1.07 | -0.03866 |
| Co3O4/MnO2 -1-1 | 81.63 | Tetragonal & Cubic | 0.18565 | 3.5 | 0.75 | -0.08259 |