Fabrication of monodisperse zirconia-coated core-shell and hollow spheres in mixed solvents

被引：18
|
作者：
Chen, Dong
Liu, Jianshu
Wang, Peng
Zhang, Lin
Ren, Jun
Tang, Fangqiong
Wu, Wei
机构：
[1] Chinese Acad Sci, Tech Inst Phys & Chem, Lab Controllable Preparat & Appl Nanomat, Beijing 100080, Peoples R China
[2] Beijing Univ Chem Technol, Res Ctr Minist Educ High Grav Engn & Technol, Beijing 100029, Peoples R China
来源：
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2007年 / 302卷 / 1-3期
基金：
中国国家自然科学基金;
关键词：
monodisperse; zirconia; polystyrene; mixed solvents;
D O I：
10.1016/j.colsurfa.2007.03.015
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：
The monodisperse zirconia-coated polystyrene core-shell spheres were prepared in mixed solvents. The influence of the different catalyst with deionized water or ammonia and the volume fraction of acetonitrile in the mixture were investigated systematically with TEM and SEM. The shell thickness of the zirconia-coated polystyrene spheres was found to be correlated in a quasilinear fashion with the concentration of zirconium n-propoxide. The corresponding zirconia hollow particles were obtained through calcinations. XRD results showed that calcination promoted the transformation of amorphous zirconia into monoclinic phase. And the ZrO2 hollow spheres retained spherical shape up to 900 degrees C. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：461 / 466
页数：6
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