Facile Synthesis, Characterization, and Microwave Absorbability of CoO Nanobelts and Submicrometer Spheres

被引：70

作者：

Sun, Genban ^{[1
]}

Zhang, Xiaoqiang ^{[1
]}

Cao, Minhua ^{[2
,3
]}

Wei, Bingqing ^{[4
]}

Hu, Changwen ^{[2
,3
]}

机构：

[1] Beijing Normal Univ, Coll Chem, Beijing 100875, Peoples R China

[2] Beijing Inst Technol, Inst Chem Phys, Beijing 100081, Peoples R China

[3] Beijing Inst Technol, Dept Chem, Beijing 100081, Peoples R China

[4] Univ Delaware, Dept Mech Engn, Newark, DE 19716 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2009年 / 113卷 / 17期

关键词：

SOLVOTHERMAL SYNTHESIS; WAVE ABSORBER; MICROEMULSION; COBALT; NANOCRYSTALS; ABSORPTION; COMPLEX; OXIDATION; NICKEL; BAND;

D O I：

10.1021/jp8092447

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：

Single crystal CoO nanobelts with thicknesses of several nanometers and widths of 30-100 nm and polycrystalline CoO submicrometer spheres self-assembled by nanoparticles with diameters ranging from 20 to 40 nm were synthesized via a microemulsion method under solvothermal conditions. The shape and size of CoO nanostuctures can be well controlled by H2O/surfactant molar ratio and other solvothermal parameters. Apart from structural and morpholoical characterizations of the submicrometer spheres and the nanobelts, powder X-ray diffraction, electron microscopy techniques, and microwave absorption properties of typical samples have also been investigated. The results indicate that the microwave absorption of nanobelts is stronger than that of submicrometer spheres.

引用

页码：6948 / 6954

页数：7

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