Journal
MATERIALS LETTERS
Volume 188, Issue -, Pages 17-20Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2016.10.005
Keywords
NiCo2S4; Microstructure; Ethanol; Sensors
Funding
- National Natural Science Foundation of China (NSFC) [61473095]
- Fundamental Research Funds of the Central University (HEUCFZ)
- Natural Science Foundation of Heilongjiang Province [B201404]
- International Science & Technology Cooperation Program of China [2015DFR50050]
- Magor Project of Science and Technology of Heilongjiang Province [GA14A101]
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NiCo2S4, with three different morphologies, had been compounded by a simple one-step solvothermal process with addition of various solutions or metal salts at 200 degrees C for 12 h. The microstructures and crystalline phasees of the samples were investigated and the results exhibit the three products with flower-like, solid sphere-like and hollow sphere-like morphologies are all corresponding to cubic phase NiCo2S4. The materials were the first time used to fabricate gas sensors. When as gas sensors, compared with the other two morphologies NiCo2S4, hollow sphere-like NiCo2S4 had the best gas sensing properties, with relative high response, good selectivity and stability, to 100 ppm ethanol at operate temperature about 180 degrees C.
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