Ionic nanowires at 600 °C:: Using nanoarchitecture to optimize electrical transport in nanocrystalline gadolinium-doped ceria

被引：65
作者：
Laberty-Robert, Christel
Long, Jeffrey W.
Pettigrew, Katherine A.
Stroud, Rhonda M.
Rolison, Debra R.
机构：
[1] USN, Res Lab, Washington, DC 20375 USA
[2] Univ Toulouse 3, CIRIMAT, CNRS, UMR 5085, F-31062 Toulouse, France
来源：
ADVANCED MATERIALS | 2007年 / 19卷 / 13期
关键词：
D O I：
10.1002/adma.200601840
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The impact of nanoarchitecture on the electrical properties of sol-gel-derived Ce0.9Gd0.1O2 (CGO) is evaluated in O-2 from 350 to 600 degrees C. The high degree of interconnectivity established between the < 10 nm crystallites in CGO aerogels (see figure) yields an electroceramic that responds as though it contains no grain boundaries and which exhibits long-range pathways for ionic diffusion (ca. 0.5 mm).
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页码：1734 / +
页数：7
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