Low-temperature synthesis of metal tungstates nanocrystallites in ethylene glycol

Journal Article · Wed Nov 26 00:00:00 EST 2003 · Materials Research Bulletin

DOI:https://doi.org/10.1016/j.materresbull.2003.09.004· OSTI ID:20884617

Di, Chen; Guozhen, Shen; Kaibin, Tang; Huagui, Zheng; Yitai, Qian

In this paper, we report the low-temperature synthesis of metal tungstate, MWO{sub 4} (M=Ca, Sr, Ba, Cd, Zn, Pb) nanocrystallites. By reaction between metal chloride and sodium tungstate in ethylene glycol at 180 deg. C for 10 h, well-crystallized tungstate particles were successfully obtained. Characterization by X-ray powder diffraction (XRD) and transmission electron microscopy (TEM) shows that the product powders consist of nanosize particles. Photoluminescence measurement reveals that the as-obtained CaWO{sub 4}, CdWO{sub 4}, and PbWO{sub 4} show excitonic peaks at about 430, 500 and 500 nm, respectively. The solvent and reaction conditions are important in the formation of the products.

• OSTI ID: 20884617
• Journal Information: Materials Research Bulletin, Vol. 38, Issue 14; Other Information: DOI: 10.1016/j.materresbull.2003.09.004; PII: S0025540803002472; Copyright (c) 2003 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CADMIUM TUNGSTATES
CALCIUM TUNGSTATES
CHEMICAL PREPARATION
GLYCOLS
LEAD TUNGSTATES
NANOSTRUCTURES
PHOTOLUMINESCENCE
TEMPERATURE DEPENDENCE
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION