Facile and Controlled Synthesis of 3D Nanorods-Based Urchinlike and Nanosheets-Based Flowerlike Cobalt Basic Salt Nanostructures
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- 作者：Zhigang Zhao ; Fengxia Geng ; Jinbo Bai ; Hui-Ming Cheng
- 刊名：Journal of Physical Chemistry C
- 出版年：2007
- 出版时间：March 15, 2007
- 年：2007
- 卷：111
- 期：10
- 页码：3848 - 3852
- 全文大小：381K
- 年卷期：v.111,no.10(March 15, 2007)
- ISSN：1932-7455
文摘
We report the controlled synthesis of four kinds of cobalt basic salts with different morphologies and colors(pink, blue, green, and lavender) using urea as a hydrolysis agent in the presence of block copolymer P123.Li2SO4 and LiCl were used as salt additives to control the type of cobalt basic salts. It was found that theamount of urea plays a critical role in the synthesis of cobalt basic salts with different phases. Two of themexhibit interesting three-dimensional urchinlike and flowerlike morphology assembled from nanorods (pink)and nanosheets (blue), respectively. The present work suggests that it is possible to directly grow three-dimensional-ordered assemblies built from one-dimensional or two-dimensional cobalt basic salt nanostructuresthrough a one-step aqueous solution-phase chemical route under controlled conditions.