In:
Chinese Journal of Chemical Physics, AIP Publishing, Vol. 27, No. 1 ( 2014-02-27), p. 99-102
Abstract:
Three-dimensional (3D) hierarchical Co3O4 microcrystal with radial dendritic morphologies was prepared through hydrothermal reactions followed by subsequent annealing treatment. Structural and morphological characterizations were performed by X-ray diffraction, scanning electron microscopy and transmission electron microscopy. The gas sensing properties of the as-obtained microcrystal were investigated at 110 °C, which revealed that the 3D hierarchical porous Co3O4 microcrystal exhibited high sensitivity to ammonia, as well as a short response time of 10 s. The response characteristic indicates that the sensor has a good stability and reversibility. Detections of toxic and flammable gases, such as ethanol, acetone and benzene were also carried out at a relative low temperature. The results indicate that such hierarchical Co3O4 microcrystal would be a potential material in the field of gas sensing.
Type of Medium:
Online Resource
ISSN:
1674-0068
,
2327-2244
DOI:
10.1063/1674-0068/27/01/99-102
Language:
English
Publisher:
AIP Publishing
Publication Date:
2014
detail.hit.zdb_id:
2381472-X
SSG:
6,25
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