Sintering of nanoparticles of α-Fe2O3 using gelatin

被引：23

作者：

de Menezes, A. S.

Remedios, C. M. R.

Sasaki, J. M.

da Silva, L. R. D.

Goes, J. C.

Jardim, P. M.

Miranda, M. A. R. ^{[1
]}

机构：

[1] Univ Guelph, Dept Phys, Guelph, ON N1G 2W1, Canada

[2] Univ Fed Ceara, Dept Fis, BR-60455760 Fortaleza, Ceara, Brazil

[3] Univ Fed Ceara, Dept Quim Organ & Inorgan, BR-60455760 Fortaleza, Ceara, Brazil

[4] Univ Fed Ceara, Dept Mech Engn, BR-60455760 Fortaleza, Ceara, Brazil

[5] Pontificia Univ Catolica Rio de Janeiro, Dept Ciencias Mat & Met, BR-22453900 Rio De Janeiro, Brazil

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2007年 / 353卷 / 11-12期

关键词：

crystallization; crystal growth; nanocrystals; X-ray diffraction;

D O I：

10.1016/j.jnoncrysol.2006.12.022

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：

We have demonstrated in this work that single phase of alpha-Fe2O3 nanoparticle can be prepared using gelatin. it was characterized by X-ray powder diffraction (XRPD) technique, gas sorption technique (BET), thermogravimetric analysis (TGA) and transmission electron microscopy (TEM). The nanoparticle was obtained from an aqueous solution of gelatin and FeCl3 center dot 6H(2)O, as Fe source, annealed in the temperature range of 200-600 degrees C for 12 h. The mean particle size of this powder measured with XRPD is about 100 nm and this size agrees well with TEM experiments. Also, the TEM result shows agglomeration that was confirmed by BET technique. These results show that gelatin could be an alternative organic precursor to produce metal oxide powders with nanometer dimensions. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：1091 / 1094

页数：4

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