Microwave-assisted synthesis of BaMoO4 nanocrystallites by a citrate complex method and their anisotropic aggregation

被引:37
作者
Ryu, JH [1 ]
Yoon, JW [1 ]
Shim, KB [1 ]
机构
[1] Hanyang Univ, Ceram Proc Res Ctr, Dept Ceram Engn, Seoul 133791, South Korea
关键词
BaMoO4; citrate complex method; anisotropic aggregation; assembling process;
D O I
10.1016/j.jallcom.2005.07.010
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
BaMoO4 powders, which have scheelite-type structure, were successfully synthesized at low temperatures by a modified citrate complex method assisted by microwave irradiation. The citrate complex precursors were heat-treated at temperatures from 300 to 500 degrees C for 3 h. Crystallization of the BaMoO4 powders were detected at 350 degrees C and completed at a temperature of 400 degrees C. TEM image of the BaMoO4 product heat-treated at 400 degrees C revealed spindle-rods-like and flake-like morphology at 500 degrees C. The anisotropic aggregation habit of BaMoO4 lead to two-dimensionally aggregated powder morphology, which was attributed to the high chemical potentials of the intrinsic structure of BaMoO4. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:144 / 149
页数:6
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