A structure model of nano-sized domain in Gd-doped ceria

作者：Ye Fei^*; Mori Toshiyuki; Ou Ding Rong; Zou Jin; Drennan John

来源：Solid State Ionics, 2009, 180(26-27): 1414-1420.

DOI：10.1016/j.ssi.2009.08.013

• Ceria
• Microstructure
• Defect cluster
• TEM
• Simulation

Nano-sized domains have been widely observed in rare-earth-doped ceria, but their structure model remains unclear. In this work, based on the study of high resolution transmission electron microscopy (HRTEM) and selected area electron diffraction (SAED) of Gd-doped ceria, the structure model of the domains was constructed by a combination of defect clusters with oxygen vacancy chains. Then, the SAED patterns were simulated using this structure model. The simulated results are consistent with the observed SAED patterns.

• 出版日期2009-10-19