Exfoliation of layers in NaxCoO2

被引：28
|
作者：
Masuda, Yoshitake [1 ]
Hamada, Yoshiko
Seo, Won Seon
Koumoto, Kunihito
机构：
[1] Nagoya Univ, Grad Sch Engn, Nagoya, Aichi 4648603, Japan
[2] Natl Inst Adv Ind Sci & Technol, Nagoya, Aichi 4638560, Japan
[3] Korea Inst Ceram Engn & Technol, Seoul, South Korea
[4] CREST, JST, Kawaguchi 3320012, Japan
来源：
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2006年 / 6卷 / 06期
关键词：
exfoliation; cobalt oxide; CoO; nanosheet; layer structure; integration; CoO2;
D O I：
10.1166/jnn.2006.224
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We proposed and developed an exfoliation process for layer-structured NaxCoO2 to prepare CoO nanosheets. Na+ ion exchange by acid treatment was utilized to expand the spacing between the two CoO2 layers in NaxCoO2. Ethylamine was then effectively utilized for the exfoliation of cobalt oxide sheets having nanometer-order thickness and high aspect ratio. CoO nanosheets were observed by TEM micrographs and electron diffraction patterns after drying. Further efforts are needed for the application of exfoliated sheets to an integration process to fabricate self-assembled nanomaterials such as desired layer structures composed of two (or more) kinds of nanosheets.
引用
收藏
页码：1632 / 1638
页数：7
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