- Tytuł:
- Hydrothermal Synthesis of $CeO_{2}$ and $Ce_{0.9}Fe_{0.1}O_{2}$ Nanocrystals
- Autorzy:
-
Radović, M.
Dohčević-Mitrović, Z.
Golubović, A.
Matović, B.
Šćepanović, M.
Popović, Z. - Powiązania:
- https://bibliotekanauki.pl/articles/1795617.pdf
- Data publikacji:
- 2009-10
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
81.16.Be
61.05.C-
78.30.-j
78.67.Bf - Opis:
- Pure and 10 mol% $Fe^{3+}$ doped $CeO_2$ nanocrystals were synthesized by hydrothermal method using two different basic solutions ($NH_4OH$ and NaOH). All the samples were calcinated at 140°C and 200°C. The characterization of crystalline structure, vibrational and optical properties was performed using X-ray diffraction, Raman spectroscopy and spectroscopic ellipsometry. The obtained results showed that the Fe-doped samples are solid solutions with different size of nanocrystals, very dependent on the synthesis temperature and type of basic solution. The Raman measurements demonstrated electron molecular vibrational coupling and increase of oxygen vacancy concentration whereas doping provokes a small decrease of optical absorption edge in comparison with pure ceria.
- Źródło:
-
Acta Physica Polonica A; 2009, 116, 4; 614-617
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł