基于聚苯胺的气体传感器和近场通讯传感器特性研究

发布时间：2018-04-29 07:38

本文选题：聚苯胺 + 近场通讯　；参考：《南京大学》2017年硕士论文

【摘要】：在现代社会中,我们的生命健康和生活品质受到来自各方面的威胁,比如环境中的有害气体氨气。因此采用正确的方式对环境中氨气的浓度进行检测至关重要,而气体传感是一种有效和便捷的检测方法。另一方面,食品安全对于我们的健康同样至关重要,肉类是我们必不可少的食物来源。但是如果食用了腐败的肉类食物,对我们的健康非常不利,因为肉类在腐败过程中会产生生物胺(包括尸胺、腐胺等),因此必须加强肉类腐败的检测。我们可以通过检测生物胺来判定肉类腐败的程度,而生物胺是挥发性有机胺,因而生物胺的检测可以使用气体传感的方法。气体传感技术将气体种类、浓度等信息,通过气体敏感材料转化为能够检测到的电信号等。NFC近场通讯技术正在不断发展和成熟,产品形式也越来越丰富,其中比较典型的产品是NFC标签。NFC标签由NFC芯片和NFC天线组成,通过其他NFC设备的扫描能实现一些便捷的应用。NFC天线上的附着物质成分以及周围的物理化学环境,会对NFC标签的阻抗和增益产生影响。本论文基于聚苯胺和NFC标签,主要开展了以下几个方面的工作:(1)将植酸体系的PANI作为气体传感器的敏感材料,测试了对不同浓度的NH3和生物胺的气体响应性能。(2)合成了植酸体系的PANI/CeO_2复合物,并作为气体传感器的敏感材料,测试了对不同浓度的NH3的气体响应性能。(3)合成了对甲苯磺酸铁体系的PANI,并将其作为气体传感器的敏感材料,测试了对不同浓度的NH3和生物胺的气体响应性能。(4)介绍了两种类型的近场通讯传感器,turn-off传感器和turn-on传感器,阐述了两种近场传感器的设计和气体响应性能。turn-off传感器采用两步法制备,首先打断标准NFC标签天线的一部分,然后用导电聚合物PANI敏感料填充。turn-on传感器采用一步法制备,无需打断NFC标签,直接将导电聚合物PANI敏感材料集成于NFC标签天线上。从而实现气体的无线检测。
[Abstract]:In modern society, our health and quality of life are threatened by various aspects, such as ammonia, a harmful gas in the environment. Therefore, it is very important to detect the concentration of ammonia in the environment in the right way, and gas sensing is an effective and convenient method. On the other hand, food safety is also vital to our health, and meat is an essential source of food. But eating corrupted meat food is very bad for our health, because meat can produce biogenic amines (including cadaverine, putrescine, etc.) in the process of corruption, so we must strengthen the detection of meat corruption. We can determine the extent of meat corruption by detecting biogenic amines, which are volatile organic amines, so biogenic amines can be detected using gas sensing methods. Gas sensing technology is developing and maturing the information of gas type, concentration and other information, which can be detected by gas sensitive material. NFC is becoming more and more rich in product form. The typical product is the NFC tag. NFC tag is composed of NFC chip and NFC antenna. By scanning other NFC devices, some convenient applications can be realized, such as the composition of the attached matter on the .NFC antenna and the physical and chemical environment around it. Will affect the impedance and gain of the NFC tag. In this paper, based on Polyaniline and NFC tags, the following work was carried out: 1) the PANI of phytic acid system was used as the sensitive material for gas sensors. The PANI/CeO_2 complex of phytic acid system was synthesized and used as a sensitive material for gas sensors by testing the gas response properties of different concentrations of NH3 and biogenic amine. The pani of ferric p-toluenesulfonate system was synthesized and used as a sensitive material for gas sensors. Two types of near-field communication sensors, turn-off sensors and turn-on sensors, were introduced. The design of two kinds of near-field sensors and the gas response performance. Turn-off sensors are fabricated by two-step method. Firstly, a part of the standard NFC tag antenna is interrupted, and then filled with conductive polymer PANI sensor. The turn-off sensor is fabricated by one-step method. Without interrupting the NFC tag, the conductive polymer PANI sensitive material is directly integrated into the NFC tag antenna. Thus, the wireless detection of gas can be realized.
【学位授予单位】：南京大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP212

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