Effect of aging agents on the formation of TiO2 nanocrystalline powder

被引：30
作者：
Seo, DS
Lee, JK [1 ]
Lee, EG
Kim, H
机构：
[1] Chosun Univ, Div Met & Mat Engn, Kwangju 501759, South Korea
[2] Seoul Natl Univ, Sch Mat Engn, Seoul 151742, South Korea
来源：
MATERIALS LETTERS | 2001年 / 51卷 / 02期
关键词：
TiO2 crystalline powder; aging conditions; NaOH treatment; anatase; rutile;
D O I：
10.1016/S0167-577X(01)00275-0
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
An anatase or a mixture of anatase and rutile TiO2 nanocrystalline powder with a large specific surface area was prepared by aging the NaOH-treated powder in boiling water or HCl solution. The effect of the aging conditions on the crystallization, microstructure and specific surface area of the obtained crystalline TiO2 powders was investigated. The powder, through aging with the NaOH in boiling water, showed an anatase structure with spherical shape. TiO2 nanocrystalline powder with a mixture of the anatase and rutile phase was obtained, resulting from the exudation of Na in the Na2TiO3 by treating with HCl, and the powder showed a large specific surface area of 240 m(2)/g. (C) 2001 Elsevier Science B.V. All rights reserved.
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页码：115 / 119
页数：5
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