Effect of thermal treatment on catalytic properties of La0.9Ce0.10003
β Scribed by Kenji Tabata; Ikuo Matsumoto; Shigemi Kohiki
- Publisher
- Springer
- Year
- 1987
- Tongue
- English
- Weight
- 263 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0022-2461
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π SIMILAR VOLUMES
## Abstract The structural and magnetic properties of La~0.67~Sr~0.15~β‘~0.18~MnO~3β__Ξ΄__~ manganites obtained with various thermal treatment conditions have been studied. Xβray diffraction studies show that all the samples crystallize with the rhombohedral symmetry and the space group is __R__β3__c
Thermal expansion coefficients of CeNio.aPto. 2 and Ceo.aYo.2Ni0.aPto.2 polycrystalline samples have been measured up to 19 kbar in the temperature range from 7 to 250 K. The evolution of these coefficients with pressure is analysed and interpreted as a consequence of the increasing hybridization of