Molecular Sieve Sensor for Pollutants Detection at Elevated Temperat

用于高温污染物检测的分子筛传感器

• 批准号: 07555543
• 负责人: OKUBO Tatsuya
• 金额: $ 2.18万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07555543/
• 关键词: Zeolite; Quartz; Sensor; Molecular Sieve; Thin Film; NOx; SO_2; Ion Exchange; 水熱合成; モレキュラーシ-ヴ

The aim of this project is to develop NOx and SO2 sensors selective at elevated temperature by molecular sieving zeolite film formed on quartz substrates. These sensors are useful to detect the exhaust gas from boiler, furnace engine...ets., and the information can be feeded back to the combustion system. Such a control contributes the human being in view of energy saving and environmental protection.ZSM-5 film was formed on quartz substrate. The substrate was placed in an autoclave where hydrothermal reaction proceeded. We examined the influence of TEOS (Si source) and water concentrations, and the type of structure directing agents. The products were characterized by XRD and SEM which were purchased by this budget. The synthesis condition to obtain oriented film and tailored crystal size was found. A sensor system was fabricated on Au-Cr electrode on quartz. Sensor testing system controled by microcomputer was constructed. After removing the organic structure directing agent by burning, ion-exchange of Na with Cu was performed. This sensor was sensitive to NOx at 100ﾟC.In addiion, we studied the synthesis condition for Zeolite Y,and fould the condition to synthesize Y as sigle phase. SO2 was was detected at 150ﾟC.

该项目的目的是通过在石英基底上形成分子筛沸石膜来开发在高温下具有选择性的 NOx 和 SO2 传感器。这些传感器可用于检测锅炉、熔炉发动机等的废气，并且信息可以反馈到燃烧系统。这样的控制有助于人类节能和环保。在石英基板上形成ZSM-5薄膜。将基材放置在高压釜中进行水热反应。我们研究了 TEOS（硅源）和水浓度以及结构导向剂类型的影响。通过 XRD 和 SEM 对本预算购买的产品进行了表征。找到了获得取向薄膜和定制晶体尺寸的合成条件。在石英上的金铬电极上制作了传感器系统。搭建了微机控制的传感器测试系统。通过燃烧除去有机结构导向剂后，进行Na与Cu的离子交换。该传感器在100℃下对NOx敏感。此外，我们还研究了Y沸石的合成条件，提出了单相Y的合成条件。 SO2 在 150°C 时被检测到。

项目成果

T.Okubo et al.: "Flux Growth of Milli meter-sized Single Crystal Aluminate Sodalit." Synthesis of Microporous Materials:Zeolite,Clay and Nanostructure. 189-95 (1996)

T.Okubo 等人：“毫米级单晶铝酸方钠石的助熔剂生长”。

T.Okubo, J.Sun, C.B.Dartt and M.E.Davis: "Flux Growth of Millimeter-Sized Single Crystal Aluminate Sodalite" "Synthesis of Microporous Materials : Zeolites, Clays, and Nanostructures", Marcel Dekker, Inc., New York.189-95 (1996)

T.Okubo、J.Sun、C.B.Dartt 和 M.E.Davis：“毫米级单晶铝酸盐方钠石的通量生长”“微孔材料的合成：沸石、粘土和纳米结构”，Marcel Dekker, Inc.，纽约。189

大久保 達也: "ゼオライト単結晶の育成" ゼオライトニューズレター. 13. 49-55 (1996)

Tatsuya Okubo：“沸石单晶的生长”《沸石通讯》13. 49-55 (1996)。

Isao Sasaki and Tatsuya Okubo: "Chemical Zensor using Zeolites" PETROTECH. (in press.).

Isao Sasaki 和 Tatsuya Okubo：“使用沸石的化学 Zensor”PETROTECH。

Mark C.Lovallo, Michael Tsapatsis and Tatsuya Okubo: "Preparation of an Asymmetric Zeolite L Film" Chemistry of Materials. 8. 1579-83 (1996)

Mark C.Lovallo、Michael Tsapatsis 和 Tatsuya Okubo：“非对称沸石 L 薄膜的制备”材料化学。