Method for detecting ethanol by indium oxide-based folded microspheres and application of indium oxide-based folded microspheres

An indium oxide-based, wrinkled technology, applied in chemical instruments and methods, inorganic chemistry, measuring devices, etc., can solve the problems of complex experimental steps, high working temperature, and poor selectivity of sensitive materials

CN113189148APending Publication Date: 2021-07-30西安电子科技大学芜湖研究院 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2021-07-30

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Abstract

The invention belongs to the technical field of semiconductor oxide gas sensors, and discloses a method and application for detecting ethanol by indium oxide-based folded microspheres. The method comprises the following steps: weighing In(NO3)3, dispersing the In(NO3)3 in deionized water, and stirring until the solution is transparent; adding the solution into an atomization device in spray pyrolysis, and setting N2 as carrier gas; after the solution completely reacts, collecting a terminal reaction product, cleaning, drying and calcining; ultrasonically dispersing a sensitive material in deionized water, coating a ceramic tube of the sensor with a brush, and calcining; welding a sensitive electrode and a heating wire on a hexagonal base, aging, and starting a test after the resistance of a device is stable. According to the In2O3 folded microspheres provided by the invention, through a spray pyrolysis method and inheritance, the response recovery time of a sensor can be shortened, the selection characteristic and sensitivity of the sensor are improved, the moisture resistance of the sensor is improved, and a new thought is provided for synthesizing a nano material.
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Description

technical field

[0001] The invention belongs to the technical field of semiconductor oxide gas sensors, and in particular relates to a method and application of indium oxide-based wrinkled microspheres for ethanol detection. Background technique

[0002] Currently, drinking and working is very dangerous for high-risk jobs or for drivers in a variety of industries. There is a certain relationship between alcohol intake and the body's exhaled alcohol content. Moreover, ethanol is a flammable organic volatile gas, so it is very necessary to monitor the leakage point. The detection of ethanol has the following requirements: high sensitivity, fast response and recovery time, work under high humidity, and unique selection characteristics for ethanol in the face of various gases.

[0003] Currently, technologies for ethanol detection include: surface acoustic microwave gas sensor, chromatography / mass spectrometry (GC / MS), spectrometry, etc. However, these techniques still have s...

Examples

Embodiment Construction

[0062] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0063] Aiming at the problems existing in the prior art, the present invention provides a method and application of indium oxide-based wrinkled microspheres for ethanol detection. The present invention will be described in detail below with reference to the accompanying drawings.

[0064] Such as figure 1 As shown, the method for detecting ethanol using indium oxide-based wrinkled microspheres provided in the embodiments of the present invention includes the following steps:

[0065] S101, weigh 1.20g 4mmol of In(NO 3 ) 3 Disperse in 60mL of deionized water and stir at room temperature until the solution is transparent,...