Green synthesis of hexagonal-shaped WO3 center dot 0.33H(2)O nanodiscs composed of nanosheets

Zhou, Liang, Zou, Jin, Yu, Minmin, Lu, Peng, Wei, Jing, Qian, Yuqiang, Wang, Yunhua and Yu, Chengzhong (2008) Green synthesis of hexagonal-shaped WO3 center dot 0.33H(2)O nanodiscs composed of nanosheets. Crystal Growth and Design, 8 11: 3993-3998. doi:10.1021/cg800609n

Author Zhou, Liang
Zou, Jin
Yu, Minmin
Lu, Peng
Wei, Jing
Qian, Yuqiang
Wang, Yunhua
Yu, Chengzhong
Title Green synthesis of hexagonal-shaped WO3 center dot 0.33H(2)O nanodiscs composed of nanosheets
Formatted title
Green synthesis of hexagonal-shaped WO3 center dot 0.33H2O nanodiscs composed of nanosheets
Journal name Crystal Growth and Design   Check publisher's open access policy
ISSN 1528-7483
Publication date 2008-11-05
Year available 2008
Sub-type Article (original research)
DOI 10.1021/cg800609n
Open Access Status
Volume 8
Issue 11
Start page 3993
End page 3998
Total pages 6
Place of publication Washington, DC, United States
Publisher American Chemical Society
Language eng
Subject 970102 Expanding Knowledge in the Physical Sciences
100708 Nanomaterials
1007 Nanotechnology
Abstract A facile route for the preparation of WO3·0.33H2O hexagonal-shaped nanodiscs composed of nanosheets via hydrothermal treatment of an aqueous peroxo-polytungstic acid solution has been demonstrated for the first time. The hexagonal-shaped nanodiscs obtained have an average diameter of 200 nm and a mean thickness of several tens of nanometers. The effects of the preparation conditions such as the hydrothermal temperature and precursor concentration on the crystalline phase and morphology of the products have been studied systematically. The WO3·0.33H2O nanodiscs with an orthorhombic structure and regular hexagonal morphology can be synthesized in a wide hydrothermal temperature range from 100 to 200 °C. However, in the absence of hydrogen peroxide, monoclinic tungsten oxide square nanoplates are obtained. The hexagonal-shaped nanodiscs morphology have been well explained based on the crystal structure of orthorhombic WO3·0.33H2O. It is expected that this material with a well-defined and accessible crystal surface may find applications in catalysis, gas sensors, and other research areas. Copyright © 2008 American Chemical Society
Keyword Nanodiscs
Tungsten oxide
Q-Index Code C1
Q-Index Status Provisional Code
Grant ID 2006CB0N0302
Institutional Status UQ

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Created: Thu, 19 Mar 2009, 00:28:23 EST by Sally Beard on behalf of Functional Nanomaterials