Abstract
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 (Ms) of 2.72 × 10− 2 emu/g, residual magnetization (Mr) of 0.58 × 10− 2 emu/g and coercivity (Hc) of 275 Oe, exhibits excellent room-temperature ferromagnetism, which is likely ascribed to their synergistic effect of the Ce3+ ions and oxygen vacancies.
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This work was supported by the Anhui Provincial Natural Science Foundation of China (1508085SME219).
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Li, H., Meng, F., Gong, J. et al. Morphology control and magnetic properties of cauliflower-like CeO2 synthesized by a facile template-free hydrothermal method. J Mater Sci: Mater Electron 28, 9584–9588 (2017). https://doi.org/10.1007/s10854-017-6706-z
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DOI: https://doi.org/10.1007/s10854-017-6706-z