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Microwave-hydrothermal synthesis of gadolinium-doped nanocrystalline ceria in the presence of hexamethylenetetramine |
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| Authors: | E A Dolgopolova O S Ivanova V K Ivanov F Yu Sharikov A E Baranchikov A B Shcherbakov Yu D Trietyakov |
| Institution: | 1. Department of Materials Sciences, Moscow State University, Moscow, 119992, Russia 2. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, Russia 3. St. Petersburg State Mining University, 21th Line 2, St. Petersburg, 199106, Russia 4. Zabolotny Institute of Microbiology and Virology, National Academy of Sciences of Ukraine, ul. Zabolotnogo 154, Kiev, 252143, Ukraine |
| Abstract: | A new method is proposed for producing nanodisperse ceria-based solid solutions, involving microwave-hydrothermal (MW-HT) treatment of aqueous solutions containing salts of cerium and dopant elements and hexamethylenetetramine (HMTA). The specifics of HMTA hydrolysis under hydrothermal conditions are studied. X-ray and electron diffraction, Raman spectroscopy, and transmission electron microscopy are used to analyze the physicochemical characteristics of Ce1 ? x Gd x O2 ? x/2 (x = 0.10, 0.15, 0.20) nanocrystalline solid solutions produced using the new method. |
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