期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 662, 期 -, 页码 118-125出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2015.12.066
关键词
ZnO nanoparticles; MoS2 nanosheets; Composites; Gas sensors
资金
- National Natural Science Foundation of China [61102006]
- Natural Science Foundation of Shandong Province, China [2015ZRB019N1, ZR2014EL006]
- Shandong Province Higher Educational Science and Technology Program [J15LA56]
More and more researchers are paying attention to the two-dimensional layered MoS2 which has a similar structure to graphene and its composite materials. The ZnO nanoparticles-coated MoS2 nano-sheets were successfully fabricated by two step hydrothermal method. The morphology and microstructure were characterized by X-ray diffraction (XRD), energy dispersive spectroscopy (EDS), X-ray photoelectron spectra (XPS), field emission scanning electron microscopy (FESEM), and transmission electron microscopy (TEM). Results show that the ZnO-coated MoS2 nanosheets are about 500 nm in diameter, which is constructed by relatively densely packed nanosheets with the thickness of around 5-10 nm. The scale of ZnO nanoparticles are about 8 nm. Furthermore, owing to the supporting substrate of specific two-dimensional MoS2 nanosheets, the sensor based on ZnO nanoparticles-coated MoS2 nanosheets exhibit superior gas sensing performance towards ethanol and it maybe have potential applications in the detection of ethanol vapors. (C) 2015 Elsevier B.V. All rights reserved.
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