## Abstract __Concentration of oxygen vacancies, optical absorption and microstructure of Ce~0.9~Tb~0.1~O~2β~__~Ξ΄~ __material under different atmospheres (O~2~, He and H~2~) and temperatures are characterized by in situ Xβray diffraction, in situ Raman spectroscopy and confocal microscopy. In this
Study of electron paramagnetic resonance on Ce0.1 U0.9O2 solid solution
β Scribed by Yukio Hinatsu; Takeo Fujino
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 516 KB
- Volume
- 172
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
Electron pammagnetic resonance (EPR) experiments were carried out for oxygen-stoichiometric (U, Ce)O* solid solutions.
For the Ce,,,Urr902 solid solution, we have measured a broad EPR signal ( Igl R 2.43) which is attributable to Us+ ion formed due to the charge-transfer reaction between U4+ and Ce'+ ions. This large g-value may reflect the magnetic exchange interactions between uranium ions.
π SIMILAR VOLUMES
Ammonia temperature-programmed desorption (NH 3 -TPD) was used to study the acidities of CeO 2 and Ce 0.5 Zr 0.5 O 2 solid solutions. The NH 3 -TPD peaks of both CeO 2 and Ce 0.5 Zr 0.5 O 2 exist at 100-850 Β°C. The ratio of the lower and middle temperature peak areas to the higher temperature peak i
A kind of nanostructured Ce 0.9 Sm 0.1 O 1.95 is prepared by a hydrothermal method. It exhibits large Brunauer-Emmett-Teller area (>120 m 2 g -1 ), open mesoporous structure and nanocrystalline sheets. This material shows high activity for oxygen reduction. An area specific resistance below 0.6 X cm