ZIF-8/ZIF-67 多层薄膜在二氧化氮和一氧化碳检测中的应用

IF 0.8 Q3 Engineering Nanotechnologies in Russia Pub Date : 2024-09-10 DOI:10.1134/S2635167624600949

O. I. Il’in, V. A. Polyakov, N. N. Rudyk, Yu. Yu. Zhityaeva, A. V. Saenko, M. A. Gritsai, A. A. Chefranov, M. A. Soldatov

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引用次数: 0

摘要

在通过浸泡法直接在基底上获得的 ZIF-8 和 ZIF-67 薄膜的基础上，制作了带有敏感元件的气体传感器原型。通过同时分析电容和电阻响应，评估了原型对二氧化氮和一氧化碳的灵敏度。结果表明，用 ZIF-67/ZIF-8 膜层对 ZIF-8 薄膜进行功能化处理后，传感器对 NO2 的灵敏度比 ZIF-8 薄膜提高了 2 倍以上，而且还能检测 CO。基于 ZIF-67/ZIF-8 薄膜的传感器原型对二氧化氮的电阻灵敏度和电容灵敏度分别为 3%和 6%（ppm 为 45）、14%和 15%（ppm 为 85），对一氧化碳的电阻灵敏度和电容灵敏度分别为 9%和 7%（ppm 为 6）、15%和 10%（ppm 为 10）。分析表明，对电容和电阻响应进行并行分析，可以提高对传感器暴露于各种气体时的响应进行分析的准确性，并可作为使用人工智能训练传感器操作的软件界面的基础。

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Application of ZIF-8/ZIF-67 Multilayer Films for NO2 and CO Detection

Prototypes of gas sensors with sensitive elements are made based on ZIF-8 and ZIF-67 films obtained directly on a substrate by immersion. The sensitivity of the prototypes to NO₂ and CO is assessed by simultaneously analyzing the capacitive and resistive response. It is shown that the functionalization of ZIF-8 films with layers of ZIF-67/ZIF-8 leads to an increase in the sensitivity of the sensor to NO₂ by more than 2 times compared to ZIF-8 films, and also allows CO detection. A sensor prototype based on ZIF-67/ZIF-8 films shows a resistive and capacitive sensitivity to NO₂ of 3 and 6% (for 45 ppm), 14 and 15% (for 85 ppm), and to CO of 9 and 7% (for 6 ppm), 15 and 10% (for 10 ppm). It is shown that parallel analysis of the capacitive and resistive response makes it possible to increase the accuracy of the analysis of the sensor response when exposed to various gases and can be used as the basis for a software interface for training sensor operation using artificial intelligence.

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来源期刊

Nanotechnologies in Russia NANOSCIENCE & NANOTECHNOLOGY-

CiteScore

1.20

自引率

0.00%

发文量

期刊介绍： Nanobiotechnology Reports publishes interdisciplinary research articles on fundamental aspects of the structure and properties of nanoscale objects and nanomaterials, polymeric and bioorganic molecules, and supramolecular and biohybrid complexes, as well as articles that discuss technologies for their preparation and processing, and practical implementation of products, devices, and nature-like systems based on them. The journal publishes original articles and reviews that meet the highest scientific quality standards in the following areas of science and technology studies: self-organizing structures and nanoassemblies; nanostructures, including nanotubes; functional and structural nanomaterials; polymeric, bioorganic, and hybrid nanomaterials; devices and products based on nanomaterials and nanotechnology; nanobiology and genetics, and omics technologies; nanobiomedicine and nanopharmaceutics; nanoelectronics and neuromorphic computing systems; neurocognitive systems and technologies; nanophotonics; natural science methods in a study of cultural heritage items; metrology, standardization, and monitoring in nanotechnology.