期刊
JOURNAL OF PHYSICAL CHEMISTRY B
卷 110, 期 46, 页码 23170-23174出版社
AMER CHEMICAL SOC
DOI: 10.1021/jp064537w
关键词
-
SiO2 nanotubes with tunable diameters and lengths have been successfully synthesized via a simple in situ templatelike process by thermal evaporation of SiO, ZnS, and GaN in a vertical induction furnace. The structure and morphologies were systematically investigated using X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and energy-dispersive X-ray spectrometry. Studies found that both the diameters and lengths of the SiO2 nanotubes can be effectively tuned by simply changing the reaction temperatures. The range of changes was from 30 nm (diameter) and several hundred micrometers (length) at 1450 C to 100 nm (diameter) and 2-10 micrometers (length) at 1300 C. Varying some other experimental parameters results in the formation of additional SiO2-based nanostructures, such as core-shell ZnS-SiO2 nanocables, ZnS nanoparticle filled SiO2 nanotubes, and fluffy SiO2 spheres. Based on the observations, an in situ templatelike process was proposed to explain the possible growth mechanism.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据