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Preparation of Surfactants Directed PANI/In2O3 Nanocomposite Thin Films and Its NH3-Sensing Properties

ISSN号：1674-862X
期刊名称：《电子科技学刊：英文版》
时间：0
分类：TQ423.12[化学工程] TB383[一般工业技术—材料科学与工程]
作者机构：[1]School of Optoclectronic Information, University of Electronic Science and Technology of China, Chengdu 610054, China
相关基金：This work was supported by the National Natural Science Foundation of China under Grant No. 60736005 and China-Australian Cooperative Foundation under Grant No. 60425101-1.

作者： Hui-Ling Tai Ya-Dong Jiang Guang-Zhong Xie[1]

关键词：阳离子表面活性剂, 纳米复合薄膜, 薄膜制备, 传感特性, 氨氮, 非离子型表面活性剂, 傅立叶变换红外光谱, 纳米复合材料, Index Terms--Ammonia, nanocomposite thin films, polyaniline nanocomposite, surfactants.

中文摘要：

Polyaniline/indium 氧化物( PANI/In2O3 ) nanocomposite 薄电影与不同表面活化剂的存在在分散水的媒介被准备了由一在原处自己组装 technique.A cationic 表面活化剂 TTAB ( tetradecyltrimethylammonium 溴化物)和非离子的表面活化剂 tween20 ( poly (乙烯氧化物)( 20 ) sorbitan monolaurate )被用作 additives.The nauocomposites 并且变瘦电影被 Fourier 变换描绘红外线( FTIR )，传播电子显微镜学( TEM )，和扫描电子显微镜学(

英文摘要：

Polyaniline/indium oxide （PANI/In2O3） nanocomposite thin films have been prepared in water-dispersed medium with the presence of different surfactants by an in-situ self-assembly technique. A cationic surfactant TTAB （tetradecyltrimethyl-ammonium bromide） and a non-ionic surfactant tween-20 （poly （ethylene oxide）（20） sorbitan monolaurate） are used as additives. The nanocomposites and thin films are characterized by Fourier transform infrared （FTIR）, transmission electron microscopy （TEM）, and scanning electron microscopy （SEM）, respectively. The optical properties reveal the interaction between PANI/In2O3 nanocomposites and surfactants, and PANI/In2O3 thin films prepared in the presence of surfactants exhibits the finer nanofiber than the surfactants free PANI/In2O3 thin film. The ammonia （NH3） gas-sensing characteristic of PANI/In2O3 thin films and the effect of different surfactants on the gas-sensing property are studied. The results indicated that the film processed in the presence of TTAB has the highest gas sensitivity among all the prepared films.