Figure 4From: Synthesis of size-controlled monodisperse Pd nanoparticles via a non-aqueous seed-mediated growthTypical SEM image of the 3-D superlattice of Pd NPs. (a) SEM image of superlattice crystals formed by as-prepared Pd NPs with the size of about 8 nm, (b) single superlattice crystal with octahedron shape, (c) exposed surfaces arranged by close-packed nanocrystals, (d) magnified step surface.Back to article page