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首页> 外文期刊>Materials Science and Engineering >Fabrication of polypyrrole/tin oxide/graphene nanoribbon ternary nanocomposite and its high-performance ammonia gas sensing at room temperature
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Fabrication of polypyrrole/tin oxide/graphene nanoribbon ternary nanocomposite and its high-performance ammonia gas sensing at room temperature

机译：聚吡咯/锡氧化锡/石墨烯纳米镍三元纳米复合材料的制备及其在室温下的高性能氨气传感

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摘要

In this study, the polypyrrole (PPy)/tin oxide (SnO_2)/graphene nanoribbon (GNR) ternary nanocomposites are successfully synthesized using in situ chemical oxidative polymerization. In doing so, the SnO_2 nanoparticles fabricated using a solvothermal reaction are coated on the surface of the GNR. The gas sensing performances of nanocomposites at room temperature are estimated by a homemade dynamic test system, equipped with a simultaneous resistance measurement platform. The response value of the PPy/SnO_2/GNR sensor containing 3-wt% SnO_2 nanoparticles with an exposure of 1-ppm NH_3 is 92.7, which is roughly three times greater than that of a pure PPy sensor. This composite sensor can sensitively detect the NH_3 between concentrations of 0.6 and 2 ppm at room temperature. The PPy/SnO_2/GNR sensor also has higher repeatability and selectivity when exposed to 1-and 2-ppm NH_3 at room temperature than existing sensor. Due to the outstanding repeatability and selectivity, it is evident that the PPy/SnO_2/GNR nanocomposite sensor is a promising gas sensing material for the detection of the hepatic or kidney disease in human breath.
机译：在该研究中，使用原位化学氧化聚合成功地合成聚吡咯（PPY）/氧化锡（SnO_2）/石墨烯纳米复合材料。在这样做时，使用溶剂热反应制造的SnO_2纳米粒子涂覆在GNR的表面上。通过同时电阻测量平台的自制动态测试系统估算室温下纳米复合材料的气体感应性能。含有3wt％SnO_2纳米颗粒的PPY / SNO_2 / GNR传感器的响应值，其暴露于1-PPM NH_3为92.7，其大约比纯PPY传感器大的三倍。该复合传感器在室温下敏感地检测0.6和2ppm浓度之间的NH_3。 PPY / SNO_2 / GNR传感器还具有比现有传感器在室温下暴露于1-且2-PPM NH_3时更高的重复性和选择性。由于具有出色的可重复性和选择性，显然，PPY / SNO_2 / GNR纳米复合体传感器是用于检测人类呼吸中肝肾疾病的有希望的气体传感材料。

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  • 来源
    《Materials Science and Engineering》 |2021年第10期|115317.1-115317.8|共8页
  • 作者

    Chia-Hsun Hsieh; Ling-Hui Xu; Jie-Mao Wang; Tzong-Ming Wu;

  • 作者单位

    Department of Materials Science and Engineering National Chung Hsing University 250 Kuo Kuang Road Taichung 402 Taiwan;

    Department of Materials Science and Engineering National Chung Hsing University 250 Kuo Kuang Road Taichung 402 Taiwan;

    Department of Materials Science and Engineering National Chung Hsing University 250 Kuo Kuang Road Taichung 402 Taiwan;

    Department of Materials Science and Engineering National Chung Hsing University 250 Kuo Kuang Road Taichung 402 Taiwan;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Polypyrrole; Tin oxide; Graphene nanoribbon; Composite; Ammonia gas sensor;

    机译：聚吡咯;氧化锡;石墨烯纳米队;合成的;氨气传感器;

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