Efficient synthesis of hollow silica microspheres useful for porous silica ceramics

被引：20

作者：

Chen, Jin-Ju ^{[1
]}

Li, Huo-Jun ^{[1
]}

Zhou, Xiao-Hua ^{[1
]}

Li, En-Zhu ^{[1
]}

Wang, Yan ^{[1
]}

Guo, Yan-Long ^{[1
]}

Feng, Zhe-Sheng ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Devic, Chengdu 610054, Sichuan, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2017年 / 43卷 / 16期

基金：

中国国家自然科学基金;

关键词：

Hollow silica microspheres; Colloidal carbon spheres; CTAB; Porous silica ceramics; Template method; SPHERES; NANOPARTICLES; FABRICATION; TEMPLATE; MICELLES;

D O I：

10.1016/j.ceramint.2017.07.118

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Hollow silica microspheres (HSMs) have been successfully synthesized in large quantities using colloidal carbon spheres (CCSs) as template, cetyltrimethylammonium bromide (CTAB) as modifying agent and tetraethylorthosilicate (TEOS) as silicon source. The CCSs are fabricated by a simple hydrothermal treatment of D-glucose, which exhibit well monodisperse and homogeneous in dimension. The CTAB effectively modifies the surface charge characteristics of CCSs, which provides a favorable circumstance for the deposition of TEOS hydrolysis products. The HSMs can be eventually obtained after CCSs and CTAB being removed by sintering. The as prepared HSMs are nearly uniform in dimension with particle size of about 500 nm. Porous silica ceramics with a three-dimensional network structure is prepared using these HSMs as raw material. Such ceramics possesses low density and dielectric constant, which make it very potential in the application of lightweight or low dielectric materials.

引用

页码：13907 / 13912

页数：6

共 33 条

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