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Preparation of a Nanowire-Structured Polyaniline Composite and Gas Sensitivity Studies

机译：纳米线结构聚苯胺复合材料的制备及气敏性研究

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摘要

To obtain organic nanowire sensors with high sensitivity and rapid response times,based on the inducement effect of surfactants during in situ polymerization,nanostructured polyan-iline composites are obtained by using a chemical oxidation method by adding a small amount of surfactant.A casting method is employed on interdigitated carbon electrodes.The gas sensitivity to a series of chemical vapors is examined at room temperature.The results indicate that polyaniline with regular nanowire structure is obtained when succinic acid is added.The gas sensitivity and response rates of a film with nanowire structure are much better than those of conventional polyaniline films produced by means of organic solution spin coating methods.The film described in this work shows good selectivity to trimethylamine and other related gases and,the reaction being reversible with the ues of high-purity nitrogen.
机译：为了获得具有高灵敏度和快速响应时间的有机纳米线传感器，基于表面活性剂在原位聚合过程中的诱导作用，通过化学氧化法加入少量表面活性剂得到纳米结构的聚苯胺复合材料。在指状碳电极上使用，在室温下对一系列化学蒸气的气体敏感性进行了研究，结果表明，加入琥珀酸后可获得具有规则纳米线结构的聚苯胺。与通过有机溶液旋涂法制得的常规聚苯胺薄膜相比，这种薄膜要好得多。本文描述的薄膜对三甲胺和其他相关气体具有良好的选择性，并且该反应在高纯度氮气的作用下是可逆的。

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