Size-controlled synthesis of nano α-alumina particles through the sol-gel method

被引：107

作者：

Mirjalili, F. ^{[1
]}

Hasmaliza, M. ^{[2
]}

Abdullah, L. Chuah ^{[1
,3
]}

机构：

[1] Univ Putra Malaysia, Fac Engn, Dept Chem & Environm Engn, Serdang 43400, Selangor, Malaysia

[2] Univ Sains Malaysia, Sch Mat & Mineral Resources Engn, George Town, Malaysia

[3] Univ Putra Malaysia, Inst Trop Forestry & Forest, Serdang 43400, Selangor, Malaysia

来源：

CERAMICS INTERNATIONAL | 2010年 / 36卷 / 04期

关键词：

Sol-gel processes; X-ray methods; Al2O3;

D O I：

10.1016/j.ceramint.2010.01.009

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：

Nano a-alumina particles were synthesized by a sol-gel method using aqueous solutions of aluminum isopropoxide and 0.5 M aluminum nitrate. 1/3-benzened disoulfonic acid disodium salt (SDBS) and sodium bis-2-ethylhexyl sulfosuccinate (Na(AOT)) were used as surfactant stabilizing agents. Solution was stirred for different periods (24, 36, 48 and 60 h) at 60 degrees C. The samples were then analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Introduction of surfactant stabilizing agents and different stirring times will affect the size and shape of particle formed and also the degree of aggregation. SDBS, however, produced better dispersion, finer particles and spherical shape nanoparticles, compared to Na(AOT). The finest particle size (20-30 nm) was obtained at 48 h stirring time with SDBS surfactant. (C) 2010 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：1253 / 1257

页数：5

共 13 条

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