Microwave-assisted synthesis of barium molybdate by a citrate complex method and oriented aggregation

Journal Article · Thu Sep 01 04:00:00 EDT 2005 · Materials Research Bulletin

DOI:https://doi.org/10.1016/j.materresbull.2005.04.032· OSTI ID:20891584

Ryu, Jeong Ho ^[1]; Yoon, Jong-Won ^[1]; Lim, Chang Sung ^[2]; Shim, Kwang Bo ^[1]

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1. Department of Ceramic Engineering, CPRC, Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul 133-791 (Korea, Republic of)
2. Department of Adv. Mat. Sci. and Eng., CPRC, Hanseo University, Seosan 356-706 (Korea, Republic of)

BaMoO{sub 4} 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 deg. C for 3 h. Crystallization of the BaMoO{sub 4} powders were detected at 350 deg. C, and completed at a temperature of 400 deg. C. TEM image of the BaMoO{sub 4} product obtained above 400 deg. C revealed spindle-rods-like or flake-like morphology. The anisotropic growth habit of BaMoO{sub 4} leads to the oriented aggregation, which is attributed to the high chemical potentials of the intrinsic structure of BaMoO{sub 4}. The BaMoO{sub 4} powder prepared at 500 deg. C showed the strongest photoluminescent intensity.

• OSTI ID: 20891584
• Journal Information: Materials Research Bulletin, Journal Name: Materials Research Bulletin Journal Issue: 9 Vol. 40; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
AGGLOMERATION
ANISOTROPY
BARIUM
CERAMICS
CHEMICAL PREPARATION
CITRATES
COMPLEXES
CRYSTAL GROWTH
CRYSTALLIZATION
ELECTRON MICROSCOPY
HEAT TREATMENTS
IMAGES
IRRADIATION
MICROWAVE RADIATION
MOLYBDATES
MORPHOLOGY
PHOTOLUMINESCENCE