Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Synthesis method of sensitive material for formaldehyde gas sensor
The invention relates to the technical field of gas detection, and discloses a synthesis method of a sensitive material for a formaldehyde gas sensor. The synthesis method comprises the following steps: 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 the ceramic chip into a reaction kettle for a hydrothermal reaction; immersing a grown tin oxide precursor into a mixed solutionof fresh hydrogen peroxide H2O2 (30 wt%) and ammonia monohydrate NH3.H2O (25 wt%), washing the tin oxide precursor with distilled water, and drying the tin oxide precursor in air; carrying out constant-temperature annealing on a nanowire array in an oxygen-enriched environment; and finally, cooling rutile type tin dioxide nanometer SnO2NW to the room temperature. By means of such a manner, more active sites can be provided, the response value of the sensor is greatly improved, the corresponding long-term stability of the sensitive material is guaranteed, and the binding force of the sensitivematerial can be improved to a large extent.
本发明涉及气体检测技术领域，公开了一种甲醛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，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；将生长出的锡氧化物前驱体浸入新鲜的过氧化氢HO(30wt％)和一水合氨NH·HO(25wt％)的混合溶液中，再用蒸馏水冲洗，空气中干燥；将纳米线阵列在富氧环境中恒温退火；最后，将金红石型二氧化锡纳米SnONW冷却至室温。通过上述方式，本发明能够提供更多的活性位点，大大提高传感器的响应值，保障了敏感材料的相应的长期稳定性，并可以很大程度上提高敏感材料的结合力。
Synthesis method of sensitive material for formaldehyde gas sensor
The invention relates to the technical field of gas detection, and discloses a synthesis method of a sensitive material for a formaldehyde gas sensor. The synthesis method comprises the following steps: 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 the ceramic chip into a reaction kettle for a hydrothermal reaction; immersing a grown tin oxide precursor into a mixed solutionof fresh hydrogen peroxide H2O2 (30 wt%) and ammonia monohydrate NH3.H2O (25 wt%), washing the tin oxide precursor with distilled water, and drying the tin oxide precursor in air; carrying out constant-temperature annealing on a nanowire array in an oxygen-enriched environment; and finally, cooling rutile type tin dioxide nanometer SnO2NW to the room temperature. By means of such a manner, more active sites can be provided, the response value of the sensor is greatly improved, the corresponding long-term stability of the sensitive material is guaranteed, and the binding force of the sensitivematerial can be improved to a large extent.
本发明涉及气体检测技术领域，公开了一种甲醛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，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；将生长出的锡氧化物前驱体浸入新鲜的过氧化氢HO(30wt％)和一水合氨NH·HO(25wt％)的混合溶液中，再用蒸馏水冲洗，空气中干燥；将纳米线阵列在富氧环境中恒温退火；最后，将金红石型二氧化锡纳米SnONW冷却至室温。通过上述方式，本发明能够提供更多的活性位点，大大提高传感器的响应值，保障了敏感材料的相应的长期稳定性，并可以很大程度上提高敏感材料的结合力。
Synthesis method of sensitive material for formaldehyde gas sensor
一种甲醛气体传感器敏感材料的合成方法
JING HUA (Autor:in) / GU WEN (Autor:in) / CHEN HONGLIN (Autor:in) / ZHANG TING (Autor:in)
08.05.2020
Patent
Elektronische Ressource
Chinesisch
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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