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TEM and HAADF-STEM study of the structure of Au nano-particles on CeO2
被引：0
作者：
Tomoki Akita
Koji Tanaka
Masanori Kohyama
机构：
[1] National Institute of Advanced Industrial Science and Technology (AIST),Research Institute for Ubiquitous Energy Devices
来源：
Journal of Materials Science
|
2008年
/
43卷
关键词：
CeO2;
Transmission Electron Microscope Image;
Transmission Electron Microscopy Observation;
Atomic Column;
Hydrogen Stream;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The structure and growth process of Au particles on CeO2 were observed by the transmission electron microscope (TEM) equipped with the high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) system. The growth of Au particles on CeO2 was shown to be mainly Ostwald ripening under heating at various temperatures, although it is suppressed in the hydrogen atmosphere. In the HAADF-STEM observation of Au/CeO2 interfaces with the orientation relationship of (111)[1–10]Au//(111)[1–10]CeO2, (111)[−110]Au//(111)[1–10]CeO2 and atomic columns of Au and Ce were successfully resolved, and the interface structure was analyzed in details for the first time.
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页码：3917 / 3922
页数：5
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