Aqueous-Phase Synthesis of Single-Crystal Ceria Nanosheets

被引:210
作者
Yu, Taekyung [1 ]
Lim, Byungkwon [1 ]
Xia, Younan [1 ]
机构
[1] Washington Univ, Dept Biomed Engn, St Louis, MO 63130 USA
基金
新加坡国家研究基金会;
关键词
ceria; materials synthesis; nanomaterials; nanosheets; self-assembly; THIN-FILMS; FUEL-CELL; NANOPARTICLES; PARTICLES; NANOCRYSTALS; NANORODS; SHEETS; OXIDATION; CATALYSTS; GRAPHENE;
D O I
10.1002/anie.201001521
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The evolution of sheet morphology for single-crystal ceria nanosheets with a thickness of about 2.2 nm and lateral dimensions up to 4 m (see picture), involves two-dimensional self-organization of the initially formed ceria nanocrystals, followed by recrystallization. Ceria nanosheets exhibit an unusually large optical band gap energy due to the quantum size effect associated with their extremely small thickness. (Figure Presented) © 2010 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码:4484 / 4487
页数:4
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