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首页> 外文期刊>International Journal of Electrochemical Science >Morphological and Electrochemical Impedance Spectroscopy (EIS) Study of poly(3,4 ethylenedioxythiophene)-coated poly(acrylonitrile-co-styrene) nanoparticles
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Morphological and Electrochemical Impedance Spectroscopy (EIS) Study of poly(3,4 ethylenedioxythiophene)-coated poly(acrylonitrile-co-styrene) nanoparticles

机译：聚（3,4乙二氧基噻吩）包覆的聚（丙烯腈-共苯乙烯）纳米粒子的形态学和电化学阻抗谱（EIS）研究

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摘要

The nanoparticles of Poly(3,4-ethylenedioxythiophene)-coated Poly (acrylonitrile-co-styrene) (P(AN- co-St)/PEDOT) were successfully synthesized via a one-pot micro emulsion polymerization process. Ammonium persulfate (APS) and sodium dodecyl sulfate (SDS) were used to carry out the free-radical polymerization of P(AN-co-St) and the oxidative polymerization of 3,4–ethylenedioxythiophene (EDOT) monomer in microemulsion media. SEM, AFM, ATR-FTIR, UV-Visible were used to characterize their morphology and structure. High magnification SEM images of PEDOT-coated P(AN-co-St) nanoparticles obtained 25-65 nm. The results of ATR-FTIR and UV-visible spectrum revealed that the P(AN-co-St) nanoparticles are covered by PEDOT in the doped state. Electrochemical Impedance Spectroscopy (EIS) was used to indicate electrochemical performances of nanoparticles with time evolution. The electrochemical impedance spectroscopy data were fitted with Electrical Circuit Model of R(C(R(Q(R))))(CR) which gives a good correlation between the calculated and the experimental values. P(AN-co-St)/PEDOT nanoparticles exhibit capacitive behaviour similar to that of homo-PEDOT nanoparticle.
机译：通过一锅式微乳液聚合工艺成功合成了聚（3,4-乙撑二氧噻吩）包覆的聚（丙烯腈-共苯乙烯）（P（AN-co-St）/ PEDOT）纳米粒子。过硫酸铵（APS）和十二烷基硫酸钠（SDS）用于在微乳液介质中进行P（AN-co-St）的自由基聚合和3,4-乙撑二氧噻吩（EDOT）单体的氧化聚合。 SEM，AFM，ATR-FTIR，UV-Visible用于表征其形态和结构。 PEDOT涂层的P（AN-co-St）纳米粒子的高倍SEM图像获得25-65 nm。 ATR-FTIR和紫外可见光谱的结果表明，P（AN-co-St）纳米粒子在掺杂状态下被PEDOT覆盖。电化学阻抗谱（EIS）用于指示随时间变化的纳米粒子的电化学性能。电化学阻抗谱数据符合R（C（R（Q（R（）））））（CR）的电路模型，该模型在计算值和实验值之间具有良好的相关性。 P（AN-co-St）/ PEDOT纳米粒子表现出类似于均质PEDOT纳米粒子的电容行为。

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