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

页码：6566 / 6572

页数：7

共 51 条

[21] Freestanding mesoporous quasi-single-crystalline Co3O4 nanowire arrays [J].