Fig. 1
XRD diagrams of samples of spinel-type nanosized Zn–Fe–O oxides were isothermally heated at (1) 60, (2) 100, (3) 200, (4) 300, (5) 400, (6) 500, (7) 600, (8) 650, (9) 700, (10) 800, (11) 900, and (12) 950 °C for 2 h.
Fig. 1 | Scientific Reports
