Figure 1From: Preparation of γ-Fe2O3/ZnFe2O4nanoparticles by enhancement of surface modification with NaOH Typical TEM images of the samples prepared without NaOH (0) and with increasing NaOH concentrations: 0.35 (1), 0.70 (2), 1.40 (3) and 2.10 M (4). Back to article page