Synthesis, formation mechanism and sensing properties of WO{sub 3} hydrate nanowire netted-spheres

Tungsten oxide hydrate nanowire netted-spheres were successfully synthesized in the glycol solution using a facile solvothermal approach. The nanowires with uniform diameter of 4-6 nm are actually a kind of tungsten oxide hydrate/surfactant hybrid materials. The influence of surfactant, solvent, tim...

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Bibliographic Details
Published in:Materials research bulletin 2010-10, Vol.45 (10)
Main Authors: Yan, Aihua, Xie, Changsheng, Nanomaterial and Smart Sensor Research Laboratory, Department of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, Zeng, Dawen, Cai, Shuizhou, Hu, Mulin
Format: Article
Language:English
Subjects:
AMMONIA
MATERIALS SCIENCE
NANOSCIENCE AND NANOTECHNOLOGY
QUANTUM WIRES
SENSITIVITY
SURFACTANTS
TUNGSTATES
TUNGSTEN OXIDES
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Summary:Tungsten oxide hydrate nanowire netted-spheres were successfully synthesized in the glycol solution using a facile solvothermal approach. The nanowires with uniform diameter of 4-6 nm are actually a kind of tungsten oxide hydrate/surfactant hybrid materials. The influence of surfactant, solvent, time and temperature on tailoring morphology was investigated in detail. The possible formation process of WO{sub 3} hydrate nanowire netted-sphere was proposed. Sensing properties of such WO{sub 3} hydrate sensor show that the desirable sensing characteristics towards 100 ppm ammonia gas at 320 {sup o}C were obtained, such as rapid response (18.3 s), high sensitivity, good reproducibility and stability.
ISSN:0025-5408
1873-4227
DOI:10.1016/J.MATERRESBULL.2010.05.026