Synthesis and characterization of Si3N4 thin nanobelts via direct nitridation of Si powders

被引：23
|
作者：
Wang, Feng [1 ,2 ]
Qin, Xiao Fang [2 ]
Jin, Guo Qiang [1 ]
Wang, Ying Yong [1 ]
Guo, Xiang Yun [1 ]
机构：
[1] CAS, Inst Coal Chem, Key Lab Carbon Mat, Taiyuan 030001, Peoples R China
[2] Ludong Univ, Sch Chem & Mat Sci, Yantai 264025, Peoples R China
来源：
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2008年 / 41卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Si3N4; Nanobelts; Direct nitridation; Vapor-solid mechanism;
D O I：
10.1016/j.physe.2008.06.019
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Crystalline Si3N4 thin nanobelts have been synthesized via direct nitridation of Si powders without using any catalyst. The purified Si3N4 sample was characterized by X-ray diffraction, high-resolution transmission electron microscopy, energy dispersion X-ray spectrum, and Fourier transform infrared spectroscopy. The results show that the sample mainly consists Of Si3N4 thin nanobelts with a width of 100-500 nm and a length of several microns. The infrared adsorptions of the nanobelts exhibit obvious red shift compared with those of Si3N4 nanowires. The growth of the nanobelts follows the vapor-solid mechanism. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：120 / 123
页数：4
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