Continuous hydrothermal synthesis of nanometric BaZrO3 in supercritical water

被引:31
作者
Aimable, A. [1 ]
Xin, B. [1 ]
Millot, N. [1 ]
Aymes, D. [1 ]
机构
[1] Univ Bourgogne, CNRS, UMR 5209, Inst Carnot Bourgogne, F-21078 Dijon, France
关键词
powders-chemical preparation; grain size; BaZrO3; supercritical water synthesis;
D O I
10.1016/j.jssc.2007.11.015
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Nanocrystalline barium zirconate (BaZrO3) was synthesized using a hydrothermal synthesis process working in supercritical conditions and in a continuous way. By this method, we succeeded in the continuous and rapid production of nanopowders. As a preliminary work three barium precursors have been investigated: barium hydroxide (Ba(OH)(2)), barium acetate (Ba(CH3COO)(2)) and barium nitrate (Ba(NO3)(2)). Two of them (Ba(CH3COO)(2) and Ba(NO3)(2)) led to the pure perovskite phase. Then an experimental design has been conducted in order to determine the influence of the experimental parameters on the crystallinity and the grain size of the final product. (c) 2007 Elsevier Inc. All rights reserved.
引用
收藏
页码:183 / 189
页数:7
相关论文
共 33 条
[21]   Spark plasma sintering of cobalt ferrite nanopowders prepared by coprecipitation and hydrothermal synthesis [J].
Millot, N. ;
Le Gallet, S. ;
Aymes, D. ;
Bernard, F. ;
Grin, Y. .
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2007, 27 (2-3) :921-926
[22]   Hydrothermal synthesis of nanostructured inorganic powders by a continuous process under supercritical conditions [J].
Millot, N ;
Xin, B ;
Pighini, C ;
Aymes, D .
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2005, 25 (12) :2013-2016
[23]   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
[24]  
PERROTSIPPLE F, 1999, THESIS U BURGUNDY
[25]   Low-frequency Raman characterization of size-controlled anatase TiO2 nanopowders prepared by continuous hydrothermal syntheses [J].
Pighini, Catherine ;
Aymes, Daniel ;
Millot, Nadine ;
Saviot, Lucien .
JOURNAL OF NANOPARTICLE RESEARCH, 2007, 9 (02) :309-315
[26]  
Ross P.J., 1996, TAGUCHI TECHNIQUES Q
[27]  
SIEGEL RW, 1998, INT TECHNOLOGY RES I
[28]   Origin of anomalous lattice expansion in oxide nanoparticles [J].
Tsunekawa, S ;
Ishikawa, K ;
Li, ZQ ;
Kawazoe, Y ;
Kasuya, A .
PHYSICAL REVIEW LETTERS, 2000, 85 (16) :3440-3443
[29]   The hydrothermal synthesis of BaTiO3 fine particles from hydroxide-alkoxide precursors [J].
Urek, S ;
Drofenik, M .
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 1998, 18 (04) :279-286
[30]   Zirconates as new materials for thermal barrier coatings [J].
Vassen, R ;
Cao, XQ ;
Tietz, F ;
Basu, D ;
Stöver, D .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2000, 83 (08) :2023-2028