Enhanced performance of Zn and Co co-doped MoO3 nanosheets as gas sensor for n-butylamine |
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| Affiliation: | 1. Key Laboratory for Ecological Metallurgy of Multimetallic Mineral (Ministry of Education), Shenyang, 110819, Liaoning, PR China;2. School of Metallurgy, Northeastern University, Shenyang, 110819, Liaoning, PR China;3. School of Physics and Optoelectronic Engineering, Ludong University, Yantai, 264000, Shandong, PR China;4. School of Materials Science & Engineering, Northeastern University, Shenyang, 110819, Liaoning, PR China |
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| Abstract: | High operating temperature of metal oxide sensor devices hinders their practical applications. In order to reduce operating temperature, molybdenum trioxide (MoO3) nanosheets co-doped with zinc (Zn) and cobalt (Co) were successfully prepared by simple one-step hydrothermal method and characterized by X-ray diffraction, scanning electron microscopy, and X-ray photoelectron spectroscopy, and by using WS-30A gas sensor measurement system. The sensor exhibited high response to n-butylamine gas at low temperature. In particular, the response of Zn and Co co-doped MoO3 sensor was higher than that of pure MoO3 and retained excellent selectivity of MoO3 to n-butylamine. Optimum operating temperature gradually decreased with increasing Co and Zn doping amount. Multi-doping system shows great potential for the development and application of sensors,and provides feasible method for reducing their operating temperature of the sensor. |
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| Keywords: | Gas sensor Operating temperature |
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