CDS-SILICA XEROGEL NANOCOMPOSITES - PROCESSING-INDUCED TEXTURAL CHANGES

被引：8

作者：

BLANCO, E

LITRAN, R

RAMIREZDELSOLAR, M

DELAROSAFOX, N

ESQUIVIAS, L

机构：

[1] Departamento de Estructura y Propiedades de los Materiales, Facultad de Ciencias, Universidad de Cadiz

来源：

JOURNAL OF MATERIALS RESEARCH | 1994年 / 9卷 / 11期

关键词：

D O I：

10.1557/JMR.1994.2873

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

CdS-silica xerogel composites were prepared from tetramethoxysilane, acidic water, and formamide mixtures homogenized by high power ultrasounds. Different concentrations of Cd(NO3)(2) were added. CdS semiconductor nanoparticles were precipitated by H2S gas diffusion through the sonogel porous structure. Composite mechanical properties were enhanced by an impregnation process by the gel soaking in the same sol as-prepared. Textural parameters evolution is compared to the salt content in order to find the best performance to CdS nanocrystal growth. The impregnation process allows a better composite protection.

引用

页码：2873 / 2877

页数：5

共 12 条

[1] PROCESSING OF SILICA XEROGELS USING SONOCATALYSIS AND AN ADDITIVE [J].