中文摘要：

通过缓慢搅拌,在甲苯-水界面采用双原位复合法制备了银-聚苯胺（Ag-PANI）纳米复合材料。通过傅里叶红外光谱（FT-IR）、扫描电镜（SEM）、透射电镜（TEM）、X-射线衍射（XRD）、X射线光电子能谱（XPS）对复合材料的结构和形貌进行了表征。采用循环伏安（CV）、四探针测试仪、热重分析（TG）对复合材料的性能进行了表征。结果表明,当苯胺、过硫酸铵和硝酸银的物质的量之比为1∶0.5∶0.1时,产物纤维状形貌均一,直径约120nm,银纳米粒子（粒径约10nm）均匀分布在PANI中。与结构相似的纯PANI纤维比较,该复合材料具有更高的电导率（13.3S/cm）、热分解温度（482℃）和电化学活性。

英文摘要：

Ag-polyaniline（Ag-PANI）nanocomposites were synthesized via double in-situ process within toluene-water interface accompanying slowly stirring.The structure and morphology of Ag-PANI composites were characterized by Fourier Transform Infrared Spectroscopy（FT-IR）,Scanning Electron Mmicroscope（SEM）,Transmission Electron Microscopy（TEM）,X-Ray Diffraction（XRD）and X-ray Photoelectron Spectroscopy（XPS）.The performance of Ag-PANI nanocomposites were characterized through Cyclic Voltammetry（CV）,Four-probe method and Thermogravimetric（TG）analysis.Results showed that when the molar ratio of aniline,silver nitrate to ammonium persulfate was 1∶0.5∶0.1,the nanocomposite morphology presented uniform fibers of which the diameter was 120 nm.The silver nanoparticles distributed homogeneously within polyaniline and the average diameter was about 10 nm.Compared with pure PANI fibers,Ag-PANI composite showed higher conductivity（13.3S/cm）,decomposition temperature（482℃）and electrochemical activity.