| Keggin结构钴取代硅钨酸盐聚苯胺掺杂材料的合成及性质(英文) |
| Synthesis and Properties of Polyaniline Doped with Cobalt Substituted Silicotungstate Isomers in Keggin Structure |
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| 摘要: 以Keggin结构钴取代杂多硅钨酸盐异构体α，βi-K6-nHn[SiW11Co(H2O)O39]·xH2O( 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 × 10-2 S·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。 |
| 关键词: 聚苯胺 硅钨酸盐异构体 Keggin结构 荧光性 导电性 |
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| Abstract: The polyaniline hybrid materials doped with cobalt substituted silicotungstate isomers α, βi-K6-nHn[SiW11Co(H2O)O39]·xH2O( 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. |
| Keywords: polyaniline silicotungstate isomer Keggin structure fluorescence conductivity |
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| 马荣华,王福平.Keggin结构钴取代硅钨酸盐聚苯胺掺杂材料的合成及性质(英文)[J].无机化学学报,2007,23(3):445-450. |
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