Synthesis of Nb2O5•nH2O nanoparticles by water-in-oil microemulsion

被引：8

作者：

Rodrigues, Liana Alvares ^{[1
]}

Caetano Pinto da Silva, Maria Lucia ^{[1
]}

机构：

[1] Univ Sao Paulo, Escola Engn Lorena, Sao Paulo, Brazil

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2010年 / 356卷 / 03期

基金：

巴西圣保罗研究基金会;

关键词：

Ceramics; X-ray diffraction; STEM/TEM; TEM/STEM; Micelles; Microcrystallinity; Powders; Colloids; Nanoparticles; FTIR measurements; IRON-OXIDE NANOPARTICLES; HYDROUS NIOBIUM OXIDE; W/O-MICROEMULSION; REVERSE MICELLES; PRECIPITATION; ACID; SELECTIVITY; PARTICLES; PHOSPHATE; CEO2;

D O I：

10.1016/j.jnoncrysol.2009.11.002

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：

Hydrous niobium oxide (Nb2O5 center dot nH(2)O) nanoparticles had been Successfully prepared by water-in-oil microemulsion. They were characterized by X-ray diffraction (XRD), thermal analysis (TG/DTG), Fourier transform infrared spectroscopy (FTIR), BET surface area measurement, transmission electron microscopy (TEM), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The results showed that the nanoparticle was exactly Nb2O5 center dot nH(2)O with spherical shape. Their BET surface area was 60 m(2) g(-1). XRD results showed that Nb2O5 center dot nH(2)O nanoparticles with crystallite size in nanometer scale were formed. The crystallinity and crystallity size increased with increasing annealing temperature. TT-phase of Nb2O5 was obtained when the sample is annealed at 550 degrees C. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：125 / 128

页数：4

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