Oxygen migration energy in La and Y Co-doped CeO2: Effect of lattice constant and grain boundary segregation

The transfer energy of oxygen vacancy of La and Y co-doped CeO2 is investigated in which the total amount of La and Y is fixed at 20 at%. Although both the La3+ (1.16 Å) and Y3+ (1.032 Å) ions are larger than the Ce4+ ions (0.97 Å), individual single doping of La and Y results in an increase and a d...

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Bibliographic Details
Main Authors: Ho-Chang Lee, Dokyum Kim, Jung-A Lee, Young-Woo Heo, Jeong-Joo Kim, Joon-Hyung Lee
Format: Article
Language:English
Published: Elsevier 2022-09-01
Series:Journal of Science: Advanced Materials and Devices
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S246821792200034X