以Keggin结构钴取代杂多硅钨酸盐异构体α,βi-K6-nHn[SiW11Co(H2O)O39]·χH2O(βi＝β1,β2,β3)为掺杂剂,采用固相合成法制备了4种聚苯胺掺杂材料.用元素分析、红外光谱、紫外-可见光谱、SEM、X-射线粉末衍射、热重分析等对材料进行了表征.测定了材料的热稳定性、荧光性和导电性.实验结果表明:合成的掺杂态聚苯胺新材料具有较好的热稳定性、荧光性和导电性,室温电导率为7.5×10-2S·cm-1,每种掺杂材料都有一个荧光发射峰,其发光中心来自于掺杂态聚苯胺极化子能带与价带之间的跃迁.%The polyaniline hybrid materials doped with cobalt substituted silicotungstate isomers α,βi-K6-nHn[SiW11Co(H2O)O39]·χH2O(βi＝β1,β2,β3)have been prepared.The materials were characterized by elemental analysis,IR spectrascopy,UV-Vis,scanning electron microscopy(SEM),TG and X-ray powder diffraction(XRD).Fluorescence and conductivity of the materials were determined.The results indicate that SiW11Co/PANI have better thermal stability,fluorescence and conductivity;the conductivity of the materials is 7.5× 10-2 S·cm-1 at room temperature.Each of the polyaniline hybrid materials has one emission spectrum from the transition of the electrons between exciton band(produced due to doping)and valence band.
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