Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 495, Issue 1, Pages 88-92Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2010.01.092
Keywords
Oxide materials; Chemical synthesis; Electronic properties; Light absorption and reflection
Categories
Funding
- National Basic Research Program of China [2009CB939705, 2009CB939702]
- Nature Science Foundation of China [50927201]
- Opening Research Foundation of State Key Laboratory of Advanced Technology for Materials Synthesis and Processing (Wuhan University of Technology)
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Three-dimensional WO3 nanowall was successfully synthesized by a facile solvothermal approach in the solution of F127 template. The effect of solvent on tailoring morphology was investigated in detail. The results show that the products with a diameter of 1-3 mu m are actually a kind of nanowall structure, which is composed of high-density nanosheets with about 30 nm in thickness. A possible formation mechanism is proposed here. Sensing properties show that the sensitivity of the three-dimensional WO3 sensor is obviously higher than that of commercial WO3 sensor. UV illumination on three-dimensional WO3 sensor could greatly improve the response because of the formation of defects. (C) 2010 Elsevier B.V. All rights reserved.
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