Influence of the rare earth element substitution on oxygen adsorption-desorption properties of YBCO

The oxygen adsorption-desorption properties of RBa2Cu3O7−δ (R = Gd, Er, Eu, Dy, Sm, Ho and Nd) and Y1−xLaxBa2Cu3O7−δ (x=0.1, 0.5 and 1.0) were investigated from room temperature to 950 °C by thermogravimetry (TG). The results show that all samples will release oxygen with the increasing of temperatu...

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Bibliographic Details
Published in:Frontiers of physics 2006-09, Vol.1 (3), p.368-370
Main Authors: Fan, Yu-shan, Song, Hong-zhang, Li, Zhi-hui, Yang, De-lin, Hu, Xing
Format: Article
Language:English
Subjects:
Adsorption
Desorption
Gadolinium
Oxygen
Rare earth elements
Room temperature
Temperature dependence
Thermogravimetry
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Summary:The oxygen adsorption-desorption properties of RBa2Cu3O7−δ (R = Gd, Er, Eu, Dy, Sm, Ho and Nd) and Y1−xLaxBa2Cu3O7−δ (x=0.1, 0.5 and 1.0) were investigated from room temperature to 950 °C by thermogravimetry (TG). The results show that all samples will release oxygen with the increasing of temperature and the released oxygen can be absorbed back into the sample when temperature decreases. However, dependent on the rare earth element, the amount of the released oxygen is different for these samples. Moreover, in the temperature increasing and decreasing circle the repetition of oxygen adsorption-desorption is also different.
ISSN:1673-3487
2095-0462
1673-3606
2095-0470
DOI:10.1007/s11467-006-0031-y