Fig. 2From: Controlled Synthesis and Properties of 3d–4f Metals Co-doped Polyoxometalates-Based MaterialsSEM images of CeCdW12 nanoflowers which were prepared using different amount of CdCl2·2.5H2O (a 0.5 mmol; b 1.0 mmol; c 3 mmol; d 3.5 mmol)Back to article page