Morphology control and magnetic properties of cauliflower-like CeO2 synthesized by a facile template-free hydrothermal method

作者：Li, Huijie; Meng, Fanming^*; Gong, Jinfeng; Fan, Zhenghua; Qin, Rui

来源：Journal of Materials Science: Materials in Electronics , 2017, 28(13): 9584-9588.

DOI：10.1007/s10854-017-6706-z

• ENHANCED CATALYTIC-ACTIVITY
• NANORODS
• FERROMAGNETISM
• NANOPARTICLES
• NANOTUBES
• ROUTE

Cauliflower-like CeO2 particles composed of numerous nanorods with variable diameters of 100-220 nm have been successfully synthesized via a facile template-free hydrothermal method. The influences of the reaction time on the morphologies, crystal structures, and magnetic properties of the resulting products have been investigated. X-ray photoelectron spectroscopy shows that Ce4+ and Ce3+ ions coexist at the surface of the particles. M-H curve with the saturation magnetization (M-s) of 2.72 x 10(- 2) emu/g, residual magnetization (M-r) of 0.58 x 10(- 2) emu/g and coercivity (H-c) of 275 Oe, exhibits excellent room-temperature ferromagnetism, which is likely ascribed to their synergistic effect of the Ce3+ ions and oxygen vacancies.

• 出版日期2017-7
• 单位安徽大学