Hydrothermal synthesis of uniform WO{sub 3} submicrospheres using thiourea as an assistant agent

Journal Article · Sun Aug 15 00:00:00 EDT 2010 · Materials Characterization

DOI:https://doi.org/10.1016/J.MATCHAR.2010.04.014· OSTI ID:22066270

Su, X T; Xiao, F; Lin, J L ^[1]; Jian, J K ^[2]; Li, Y N; Sun, Q J ^[1]

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1. Ministry Key Laboratory of Oil and Gas Fine Chemicals, College of Chemistry and Chemical Engineering, Xinjiang University, No. 14 Shengli Road, Urumqi 830046 (China)
2. College of Physics Science and Technology, Xinjiang University, No. 14 Shengli Road, Urumqi 830046 (China)

Nearly monodisperse tungsten trioxide submicrospheres have been synthesized with tungsten acid and HCl as the starting materials and thiourea as a structure-directing agent through a facile hydrothermal method. The obtained products were characterized by X-ray diffraction, transmission electron microscopy, scanning electron microscopy and energy dispersive X-ray, respectively. The results show that the WO{sub 3} submicrospheres are monodisperse with a diameter of about 800-1000 nm. The morphology of the products gradually evolutes from rods to spheres with increase of the reaction time. The formation mechanism of the WO{sub 3} submicrospheres is primarily discussed.

• OSTI ID: 22066270
• Journal Information: Materials Characterization, Vol. 61, Issue 8; Other Information: Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1044-5803
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
HYDROCHLORIC ACID
HYDROTHERMAL SYNTHESIS
MORPHOLOGY
RODS
SCANNING ELECTRON MICROSCOPY
THIOUREAS
TRANSMISSION ELECTRON MICROSCOPY
TUNGSTEN OXIDES
X-RAY DIFFRACTION
X-RAY SPECTROSCOPY