Production of CeO2 Nanoparticles by Method of Laser Ablation of Bulk Metallic Cerium Targets in Liquid


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The method of pulsed laser ablation in liquid was used to synthesize dispersions of cerium oxide nanoparticles when subjecting a metallic cerium target in water and alcohol to basic frequency radiation of the nanosecond Nd:YAG laser (1064 nm, 7 ns, 20 Hz). Researchers have studied the effect of laser radiation parameters, duration of impact, and optical scheme of experiment on the ablation process. The average rate of nanoparticle production was 50 mg/h in water and 25 mg/h in alcohol. Researchers have studied the size characteristics and crystalline structure of the nanoparticles produced. The particles have bimodal size distribution with 6 nm and 25 nm maximums. The average crystallite size is 17–19 nm. The crystalline structure of nanoparticles, namely cubic cerium oxide (fluorite structure), space group Fm-3m, is confirmed by the X-ray diffraction data, as well as optical absorption spectra and Raman spectroscopy.

Sobre autores

V. Svetlichnyi

V. D. Kuznetsov Siberian Physical-Technical Institute at Tomsk State University

Autor responsável pela correspondência
Email: v_svetlichnyi@bk.ru
Rússia, Tomsk

I. Lapin

V. D. Kuznetsov Siberian Physical-Technical Institute at Tomsk State University

Email: v_svetlichnyi@bk.ru
Rússia, Tomsk

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