Co-precipitation of silica and alkaline-earth carbonates using TEOS as silica source

被引：48

作者：

Voinescu, Alina E.

Kellermeier, Matthias

Carnerup, Anna M.

Larsson, Ann-Kristin

Touraud, Didier

Hyde, Stephen T. ^{[1
]}

Kunz, W.

机构：

[1] Australian Natl Univ, Dept Appl Math, Res Sch Phys Sci, Canberra, ACT 0200, Australia

[2] Univ Regensburg, Inst Phys & Theoret Chem, D-93040 Regensburg, Germany

来源：

JOURNAL OF CRYSTAL GROWTH | 2007年 / 306卷 / 01期

关键词：

growth from solutions; barium carbonate composite; biomorphs; organic silica; strontium carbonate composite;

D O I：

10.1016/j.jcrysgro.2007.03.060

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

We explore the use of tetraethoxysilane (TEOS) as a silica source for the formation of carbon ate-silica composite materials known as 'biomorphs'. The basic hydrolysis of TEOS furnishes silica in a controllable fashion, allowing a significantly higher reproducibility of the obtained silica-barium and silica-strontium carbonate co-precipitates compared to commercial water glass silica used so far. We further discuss the influence of ethanol used as a co-solvent on the morphologies of biomorphs, which are examined by optical microscopy, field emission scanning electron microscopy (FESEM) and energy dispersive X-ray analysis (EDX). (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：152 / 158

页数：7

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