Figure 3
From: Fe-based hybrid electrocatalysts for nonaqueous lithium-oxygen batteries
(a) Schematic illustration of growth mechanism of the Fe3O4-Fe nanohybrids (oriented attachment (OA) + Oswald ripening (OR) growth) and Fe3O4 nanospheres (OR growth) by the electrical wire pulse process. Particle size distribution of (b) the Fe3O4-Fe nanohybrids and (c) the Fe3O4 nanospheres.
