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Synthesis method of sensitive material for hydrogen sulfide gas sensor
The invention relates to the technical field of gas detection, and discloses a synthesis method of a sensitive material for a hydrogen sulfide gas sensor. The synthesis method comprises the followingsteps: printing a metallic tin layer on a ceramic chip printed with an interdigital electrode, and carrying out annealing treatment; carrying out ultrasonic treatment, carrying out repeated cleaning by using deionized water and ethanol, and then carrying out drying; putting a ceramic chip into a reaction kettle for a hydrothermal reaction; immersing the ceramic chip into a mixed solution of hydrogen peroxide and ammonia monohydrate, washing the ceramic chip with a large amount of distilled water, and naturally drying the ceramic chip in air; doping platinum (Pt), palladium (Pd), lanthanum (La)and praseodymium (Pr) at the tin oxide precursor of the ceramic chip by using an impregnation method or a sputtering method; and finally, carrying out oxidation treatment on the ceramic chip to obtain a tin oxide nanowire doped with different precious metals. By means of such a manner, the hydrogen sulfide gas sensor has a very low detection limit on hydrogen sulfide; and the sensitive material prepared through the synthesis method is very firmly combined with a substrate, and the response stability of the sensor can be guaranteed.
本发明涉及气体检测技术领域，公开了一种硫化氢气体传感器敏感材料的合成方法，包括如下步骤：在印有叉齿电极的陶瓷片上印刷金属锡层，并进行退火处理；进行超声，并用去离子水和乙醇进行多次清洗后、烘干；将陶瓷片置于反应釜中进行水热反应；再浸入过氧化氢和一水合氨的混合液中，后用大量蒸馏水冲洗陶瓷片，再置于空气中自然干燥；在陶瓷片的锡氧化物前驱体处利用浸渍法或者溅射法，掺杂铂Pt、钯Pd、镧La、镨Pr；最后，对陶瓷片进行氧化处理，得到掺杂有不同贵金属的氧化锡纳米线。通过上述方式，本发明能够对硫化氢具有很低的检测限，且本合成方法制成的敏感材料与衬底的结合非常牢固，可以保障传感器响应的稳定性。
Synthesis method of sensitive material for hydrogen sulfide gas sensor
The invention relates to the technical field of gas detection, and discloses a synthesis method of a sensitive material for a hydrogen sulfide gas sensor. The synthesis method comprises the followingsteps: printing a metallic tin layer on a ceramic chip printed with an interdigital electrode, and carrying out annealing treatment; carrying out ultrasonic treatment, carrying out repeated cleaning by using deionized water and ethanol, and then carrying out drying; putting a ceramic chip into a reaction kettle for a hydrothermal reaction; immersing the ceramic chip into a mixed solution of hydrogen peroxide and ammonia monohydrate, washing the ceramic chip with a large amount of distilled water, and naturally drying the ceramic chip in air; doping platinum (Pt), palladium (Pd), lanthanum (La)and praseodymium (Pr) at the tin oxide precursor of the ceramic chip by using an impregnation method or a sputtering method; and finally, carrying out oxidation treatment on the ceramic chip to obtain a tin oxide nanowire doped with different precious metals. By means of such a manner, the hydrogen sulfide gas sensor has a very low detection limit on hydrogen sulfide; and the sensitive material prepared through the synthesis method is very firmly combined with a substrate, and the response stability of the sensor can be guaranteed.
本发明涉及气体检测技术领域，公开了一种硫化氢气体传感器敏感材料的合成方法，包括如下步骤：在印有叉齿电极的陶瓷片上印刷金属锡层，并进行退火处理；进行超声，并用去离子水和乙醇进行多次清洗后、烘干；将陶瓷片置于反应釜中进行水热反应；再浸入过氧化氢和一水合氨的混合液中，后用大量蒸馏水冲洗陶瓷片，再置于空气中自然干燥；在陶瓷片的锡氧化物前驱体处利用浸渍法或者溅射法，掺杂铂Pt、钯Pd、镧La、镨Pr；最后，对陶瓷片进行氧化处理，得到掺杂有不同贵金属的氧化锡纳米线。通过上述方式，本发明能够对硫化氢具有很低的检测限，且本合成方法制成的敏感材料与衬底的结合非常牢固，可以保障传感器响应的稳定性。
Synthesis method of sensitive material for hydrogen sulfide gas sensor
一种硫化氢气体传感器敏感材料的合成方法
JING HUA (author) / GU WEN (author) / CHEN HONGLIN (author) / ZHANG TING (author)
2020-05-08
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
C01G
Verbindungen der von den Unterklassen C01D oder C01F nicht umfassten Metalle
,
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
/
G01N
Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften
,
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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