Cobalt hydroxide nanosheets and their thermal decomposition to cobalt oxide nanorings

被引：104

作者：

Liu, Xiaohe ^{[1
]}

Yi, Ran ^{[1
]}

Zhang, Ning ^{[1
]}

Shi, Rongrong ^{[1
]}

Li, Xingguo ^{[2
]}

Qiu, Guanzhou ^{[1
]}

机构：

[1] Cent S Univ, Dept Inorgan Mat, Changsha 410083, Hunan, Peoples R China

[2] Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China

来源：

CHEMISTRY-AN ASIAN JOURNAL | 2008年 / 3卷 / 04期

关键词：

cobalt; hydrothermal synthesis; nanorings; nanosheets; nanostructures;

D O I：

10.1002/asia.200700264

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We demonstrate herein that single-crystalline beta-cobalt hydroxide (beta-Co(OH)(2)) nanosheets can be successfully synthesized in large quantities by a facile hydrothermal synthetic method with aqueous cobalt nitrate as the cobalt source and triethylamine as both an alkaline and a complexing reagent. This synthetic method has good prospects for the future large-scale production of single-crystal line beta-Co(OH)(2) nanosheets owing to its high yield, low cost, and simple reaction apparatus. Single-crystalline porous nanosheets and nanorings of cobalt oxide (Co3O4) were obtained by a thermal-decomposition method with single-crystalline beta-Co(OH)(2) nanosheets as the precursor. A probable mechanism of formation of beta-Co(OH)(2) nanosheets, porous Co3O4 nanosheets, and Co3O4 nanorings was proposed on the basis of the experimental results.

引用

页码：732 / 738

页数：7

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