Facile One-Step Flame Synthesis of La_1−xSr_xMnO₃ Nanoparticles for CO Catalytic Oxidation

Figure 4

SEM images of La_1−xSr_xMnO₃ with x = 0 (a), 0.2 (b), 0.4 (c), 0.6 (d), and 0.8 (e).