基于聚苯胺/二氧化锡纳米复合材料的电子标签式乙烯气体传感器研究

项目名称： 基于聚苯胺/二氧化锡纳米复合材料的电子标签式乙烯气体传感器研究

项目编号： No.61201092

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 电子学与信息系统

项目作者： 薛严冰

作者单位： 大连交通大学

项目金额： 27万元

中文摘要： 针对无线传感网等应用领域对低功耗、低成本传感器的巨大需求，本项目将研究以聚苯胺(PANI)/二氧化锡(SnO2)纳米复合材料为敏感材料的被动式电子标签气体传感器。将采用分子动力学和第一性原理的理论计算方法，深入研究PANI/SnO2复合材料间的相互作用机制、协同作用机理及复合材料与检测气体的相互作用机制，探究纳米复合材料气体敏感机理，为有针对性地设计有机/无机纳米复合气敏材料提供理论依据。项目以在果蔬仓储、运输过程中产生的乙烯气体为检测对象，研究PANI/SnO2纳米复合结构材料的制备技术，掌握其结构特征、乙烯敏感特性和性能稳定性控制技术；研究电子标签气体传感器中的小型化天线，掌握其设计方法、辐射机理、和输入阻抗调节技术；研究标签天线与PANI/SnO2纳米复合结构气敏元件的集成技术，掌握UHF波段被动式RFID气体传感器的批量制造技术。该项目的研究将有助于推动无线传感器网及物联网的发展。

中文关键词： 水果气体传感器；聚苯胺及其复合材料；射频识别；电子标签；阻抗调节

英文摘要： Because of the huge demands for low power consumption and low cost sensors in applications such as wireless sensor network, the project will study the passive electronic tag gas sensors based on polyaniline (PANI) / Tin oxide (SnO2) nanocomposite materials. By using the method of molecular dynamics and first principles theoretical calculations， the mechanism of the interaction, synergistic action of PANI and SnO2 composites and the interaction mechanism of the compound materials with the detected gases are deeply studied.The gas sensing mechanism of nanocomposites is explored, for providing theoretical foundation in the specific design of organic/inorganic nanocomposite gas-sensitive materials.The detected gas in the project is orientated to ethylene gas, which is one of the main gases produced in the process of fruits and vegetables' storage or transportation. The preparation technology of PANI/SnO2 nano composite materials is researched, for thoroughly understanding their structural feature, sensitive characteristics to ethylene gas and the performance stability control technology. The miniaturized antenna of the gas sensitive electronic tag is studied, to have a good grape of its design method, radiation mechanism and input impedance adjustment technology. The integration technology of the tag antenna with th

英文关键词： Fruit gas sensor；Polyaniline and its composite；Radio frequency identification(RFID)；Eectronic tag；Impedance adjustment