Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 157, Issue 2, Pages 681-685Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2011.05.039
Keywords
Co3O4 nanocubes; Microwave-assisted solvothermal (MS) method; Gas sensors; Xylene
Funding
- High-Tech Project of Xinjiang Province [200915124]
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Nearly monodisperse Co3O4 nanocubes have been prepared by a microwave-assisted solvothermal (MS) method at 180 degrees C for 20 min. The samples are characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The XRD pattern and TEM images of the products illustrated that Co3O4 nanocubes had a cubic phase with a lateral size of similar to 20 nm. The gas response of the Co3O4 nanocubes was studied to several typical organic gases. The Co3O4 nanocubes showed good gas sensing performance towards xylene and ethanol vapors with rapid and high responses at a low-operating temperature. The results showed that the Co3O4 nanocubes can be used to fabricate high performance gas sensors. (C) 2011 Elsevier B.V. All rights reserved.
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