Morphology-Controlled Synthesis of CeO2 Microstructures and Their Room Temperature Ferromagnetism

Meng Fanming,Fan Zhenghua,Zhang Cheng,Hu Youdi,Guan Tao,Li Aixia

Fig. 6. SEM images of annealing gear-shape samples prepared with different dosages of Ce(NO3)3?6H2O: (a) 2 mmol, (b) 4 mmol, (c) 6 mmol, (d) 8 mmol.