Hydrothermal synthesis of nanostructured inorganic powders by a continuous process under supercritical conditions

被引：35

作者：

Millot, N ^{[1
]}

Xin, B ^{[1
]}

Pighini, C ^{[1
]}

Aymes, D ^{[1
]}

机构：

[1] Univ Bourgogne, CNRS, UMR 5613, LRRS, F-21078 Dijon, France

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2005年 / 25卷 / 12期

关键词：

powders-chemical preparation; grain size; ferrites; perovskites; TiO2;

D O I：

10.1016/j.jeurceramsoc.2005.03.202

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：

In this study, using a prototype of hydrothermal synthesis in subcritical and supercritical water working in a continuous way, nanometric ceramic precursors with perfectly defined composition are produced: spinet ferrites such as Fe2CoO4, TiO2 with anatase structure and also perovskite structures such as BaZrO3. The as-prepared powders are fully characterized by complementary experiments: X-ray diffraction, electron microscopies, EDX spectrometry, surface area measurement, etc. Thus, particles size, morphology, aggregation state, crystal structure, composition are investigated. Moreover, magnetic properties of the ferrites products are studied. The powders obtained are pure phases very well crystallized in a nanometric range. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：2013 / 2016

页数：4

共 15 条

[1] RAPID AND CONTINUOUS HYDROTHERMAL CRYSTALLIZATION OF METAL-OXIDE PARTICLES IN SUPERCRITICAL WATER [J].

ADSCHIRI, T ;

KANAZAWA, K ;

ARAI, K .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1992, 75 (04) :1019-1022

[2]

AYMES D, 2003, P POUDR MAT MASS ALB

[3] New directions in inorganic and metal-organic coordination chemistry in supercritical fluids [J].

Darr, JA ;

Poliakoff, M .

CHEMICAL REVIEWS, 1999, 99 (02) :495-541

[4] Chemical heterogeneities in nanometric titanomagnetites prepared by soft chemistry and studied ex situ:: Evidence for Fe-segregation and oxidation kinetics [J].

Guigue-Millot, N ;

Champion, Y ;

Hÿtch, MJ ;

Bernard, F ;

Bégin-Colin, S ;

Perriat, P .

JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (29) :7125-7132

[5]

GUIGUEMILLOT N, 2001, PHYS REV B, V64, DOI UNSP 113405/1-113405/4

[6]

HAHN HW, 2002, P MAT RES SOC S, P676

[7] On the possibility of preparing fine-particle barium zirconate by hydrothermal synthesis [J].

Kolen'ko, YV ;

Burukhin, AA ;

Churagulov, BR ;

Oleinikov, NN ;

Vanetsev, AS .

INORGANIC MATERIALS, 2002, 38 (03) :252-255

[8]

LANGFORD JI, 1992, NIST SPEC PUBL, V846, P110

[9] Synthesis and sintering of chemically derived BaO-ZrO2 solid solutions [J].

Maschio, S ;

Bachiorrini, A ;

Lucchini, E ;

Brückner, S .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2004, 24 (08) :2241-2246

[10] Particle size dependency of ternary diagrams at the nanometer scale:: Evidence of TiO2 clusters in Fe-based spinels [J].

Millot, N ;

Aymes, D ;

Bernard, F ;

Niepce, JC ;

Traverse, A ;

Bourée, F ;

Cheng, BL ;

Perriat, P .

JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (24) :5740-5750

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