Journal
MATERIALS RESEARCH BULLETIN
Volume 40, Issue 9, Pages 1468-1476Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2005.04.032
Keywords
ceramics; chemical synthesis; electron microscopy; luminescence
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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 obtained above 400 degrees C revealed spindle-rods-like or flake-like morphology. The anisotropic growth habit of BaMoO4 leads to the oriented aggregation, which is attributed to the high chemical potentials of the intrinsic structure of BaMoO4. The BaMoO4 powder prepared at 500 degrees C showed the strongest photoluminescent intensity. (C) 2005 Elsevier Ltd. All rights reserved.
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