Hydrothermal Synthesis of Hierarchical Nanocolumns of Cobalt Hydroxide and Cobalt Oxide

被引：104
作者：
Shao, Yongzheng [1 ]
Sun, Jing [1 ]
Gao, Lian [1 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China
来源：
JOURNAL OF PHYSICAL CHEMISTRY C | 2009年 / 113卷 / 16期
基金：
中国国家自然科学基金;
关键词：
CO3O4; NANOCUBES; NICKEL; NANORODS; NANOTUBES; GROWTH; HETEROSTRUCTURES; SUPERSTRUCTURES; NANOSTRUCTURES; NANOPARTICLES; FABRICATION;
D O I：
10.1021/jp9005718
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this paper, we report a facile method to prepare high-yield one dimensional hierarchical beta-Co(OH)(2) nanocolumns through one-step hydrothermal synthesis with hydrazine hydrate and Na3PO4 as morphology-directing agents, which play important roles in the formation of hierarchical nanocolumn morphology. The hierarchical Co3O4 nanocolumns are obtained by the beta-Co(OH)(2) nanocolumns annealed at 400 degrees C for 4 h. The formation mechanism of hierarchical nanocolumns has been clearly demonstrated by studying morphology evolution processes of beta-Co(OH)(2) nanocrystals upon reaction time, which undergo two steps, the formation of nanorods and then growing sideways in the form of thin nanoplatelets to form hierarchical nanocolumns. Moreover the UV-vis spectra and magnetic properties Of Co3O4 nanocolumns also have been investigated.
引用
收藏
页码：6566 / 6572
页数：7
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