Size control for fullerene C60 nanocrystals during the high temperature and high pressure fluid crystallization process
Size control for fullerene C60 nanocrystals during the high temperature and high pressure fluid crystallization process
复制标题
DOI：
10.1016/j.matlet.2006.07.121
复制
发表时间：
2007-04-01
影响因子：
3
通讯作者：
Nakanishi, Hachiro
中科院分区：
文献类型：
--
作者：
Li, Bo;Tao, Xutang;Nakanishi, Hachiro
在高温高压流体（HTPL）结晶过程中，以丙酮为溶剂，纯水或丙酮与水的混合物为冷却溶剂，成功地制备了单分散富勒烯C-60细颗粒，并对其粒径进行了控制。受流体温度、溶剂流速、系统压力、冷却溶剂中丙酮与水的比例等实验条件的影响，制备的富勒烯C-60颗粒呈球形，粒径分布窄，平均粒径在44 ~ 110 nm之间。采用x射线粉末衍射（XRD）、扫描电镜（SEM）、动态光散射技术（DLS）和紫外可见光谱对产物进行了表征。并证实了富勒烯C-60纳米晶的尺寸效应。(c) 2006 Elsevier B.V.版权所有
The preparation and size control for mono-dispersed fullerene C-60 fine particles was successfully achieved during the high temperature and high pressure fluid (HTPL) crystallization process, in which acetone was used as the HTPL solvent and pure water or the mixture of acetone and water as the cooling solvent. The prepared fullerene C-60 particles had spherical shape and narrow size distribution with the average size ranging from 44 nm to 110 nm depending on the various experimental conditions, such as fluid temperature, solvent flow rate, system pressure and the ratio of acetone and water in cooling solvent. The products were characterized by using X-ray powder diffraction (XRD), scan electron microscopy (SEM), dynamic light scattering technique (DLS) and UV-VIS spectrum, respectively. And the size effect of such fullerene C-60 nanocrystals was confirmed. (c) 2006 Elsevier B.V. All rights reserved.