CONTROL OF PORE DIAMETER OF POROUS SILICA BY SOL-GEL COATING

被引：0

作者：

MORIYA, Y

SHIMODA, H

HINO, R

机构：

[1] Shimane Univ, Matsue-shi

来源：

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN | 1995年 / 103卷 / 11期

关键词：

CONTROL OF PORE DIAMETER; POROUS SILICA; 80SIO(2); 20TIO(2); SOL-GEL COATING;

D O I：

10.2109/jcersj.103.1201

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：

Porous silica having mesopores of about 3 nm width and narrow pore diameter distribution (PDD) was prepared by the sol-gel method. Oxide films of nominal composition of 80SiO(2) . 20TiO(2) were coated on the porous silica by using partially hydrolyzed complex alkoxide solutions. N-2 adsorption was measured on the uncoated and coated porous silicas and the PDDs were calculated, After coating, larger pores in width decreased and the PDD became narrower. From t-plots, the porous silica after coating contained only mesopores and no micropores were observed. Repetition of the coating procedure had no apparent effect on PDD.

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页码：1201 / 1204

页数：4

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