Ce-La Oxide, Ce-Yb Oxide Nanoparticles

Abstract

Nanoparticles (NPs) based on Ce-La and Ce-Yb oxides are distinguished by high thermal stability [1], oxygen non-stoichiometry [2] and antioxidant activity, which ensures their wide potential for application in various fields of science and technology, including solid oxide fuel cells, sensor devices and photocatalysis [3]. At present, various methods are used to synthesize Ce-La and Ce-Yb oxide NPs, but they are quite complex and labor-intensive. An analogue of existing methods is the high-temperature organometallic synthesis method, which allows obtaining NPs with low size dispersion and high quality of the crystal lattice.
In this work, Ce-La and Ce-Yb oxides NPs stabilized with oleic acid were obtained by high-temperature organometallic synthesis, and their optical properties, size and morphology were characterized using spectroscopy and transmission electron microscopy, respectively.
The work was supported by this foundation (project no. 22–63–00082).
LIST OF REFERENCES
1. Si R, Zhang Y-W, Wang L-M, Li S-J, Lin B-X, Chu W-S, Wu Z-Y and Yan C-H Enhanced Thermal Stability and Oxygen Storage Capacity
for Ce xZr1- xO2 ( x = 0.4−0.6) Solid Solutions by Hydrothermally Homogenous Doping of Trivalent Rare Earths // J. Phys Chem. – 2007. – V. 111 – P. 787–94
2. Ivanov V.K., Baranchikov A.E., Polezhaeva O.S., Kopitsa G.P., Tretyakov Yu.D. Oxygen non-stoichiometry of cerium dioxide nanocrystal // Journal of Inorganic Chemistry – V. 55. – No. 3. – P. 364–367.
3. Santha N. I., Sebastian M. T., Mohanan P., Alford N. McN., Sarma K., Pullar R. C., Kamba S., Pashkin A., Samukhina P. and Petzelt Effect of Doping on the Dielectric Properties of Cerium Oxide in the Microwave and Far-Infrared Frequency Range // J of the American Ceramic Society - 2004. - T. 87. – pp. 1233–1237.

Speaker

Goryacheva Ekaterina
SSU
Russia

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