Methanol gas sensor and preparation method thereof
A gas sensor and sensor technology, applied in the field of sensors, to achieve the effects of no sintering, good selectivity and high responsiveness
Inactive Publication Date: 2016-06-08
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Abstract
The present invention discloses a methanol gas sensor and a preparation method thereof. The sensor comprises an insulating ceramic substrate, a pair of metal electrodes arranged on the insulating ceramic substrate, metal leading-out conducting wires, and a gas sensitive material layer sprayed on the metal electrodes and the insulating ceramic substrate, wherein graphene oxide is doped with a Sn(bipyO2)2Cl2 material to form the gas sensitive material layer. The preparation method comprises: taking 100 parts by weight of a Sn(bipyO2)2Cl2 solid, grinding for 3 h, and carrying out ultrasonic uniform dispersion in deionized water; taking 0.1-0.5 part by weight of graphene oxide, carrying out ultrasonic uniform dispersion in deionized water, and slowly adding to the Sn(bipyO2)2Cl2 dispersion system under ultrasonic vibration; and evaporating out a proper amount of water, spraying the obtained sol onto the interdigital electrodes and the insulating substrate, and drying for 4 h. According to the present invention, the sensor has advantages of good selectivity, high response, rapid response, rapid recovery and being free of sintering, and can work at a room temperature.
Application Domain
Material electrochemical variables
Technology Topic
IonGraphite oxide +7
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PUM
Property | Measurement | Unit |
Thickness | 5.0 | µm |
Thickness | 10.0 ~ 60.0 | µm |
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