Insights for phase control in TiO2 nanoparticles from polymeric precursors method

被引：23
|
作者：
Ronconi, Celia M. [1 ]
Ribeiro, Caue [2 ]
Bulhoes, Luiz O. S. [1 ,3 ]
Pereira, Ernesto C. [1 ]
机构：
[1] Univ Fed Sao Carlos, LIEC, Dept Quim, BR-13565905 Sao Carlos, SP, Brazil
[2] EMBRAPA Instrumentacao Agropecuaria, BR-13560970 Sao Carlos, SP, Brazil
[3] UNICEP, Ctr Univ Cent Paulista, BR-13565905 Sao Carlos, SP, Brazil
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2008年 / 466卷 / 1-2期
基金：
巴西圣保罗研究基金会;
关键词：
Semiconductors; Chemical synthesis; Sol-gel synthesis;
D O I：
10.1016/j.jallcom.2007.11.060
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
This work reports the synthesis of titanium oxide (TiO2) in anatase and rutile phases prepared by the polymeric precursors method. The synthesis was investigated in function of the precursors' molar ratios and calcination temperature, in long treatment times. The characterization revealed the complete retention of anatase phase in high organic:metal molar ratios. From surface area measurements. this work evidences the existence of a critical size for anatase stabilization, as observed in previous works. (C) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：435 / 438
页数：4
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