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首页> 外文期刊>Materials Science and Engineering >Enhanced dielectric response and thermal conduction in copper nanoparticles embedded poly aniline nanofibers
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Enhanced dielectric response and thermal conduction in copper nanoparticles embedded poly aniline nanofibers

机译：嵌入铜纳米颗粒的聚苯胺纳米纤维的介电响应和导热增强

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Herein we report, an easy, facile and in situ synthesis of copper/polyaniline (Cu/PANI) nanocomposites through a chemical route via redox reaction. X-ray diffraction (XRD) confirms the characteristic peaks for polyaniline and copper. The UV-vis spectroscopy predicts the formation of emeraldine oxidation state of polyaniline, which is the only conducting state of PANT. The Cu/PANI nanocomposites have the fibril morphology and copper nanoparticles are embedded inside the PANI nanofibers. It was observed that copper reinforced polyaniline nanocomposites exhibit excellent dielectric behavior in a wide frequency range from 1.0 Hz to 1.0 MHz at room temperature. The thermal conductivity enhancement in the nanocomposites is observed in comparison to pure PANI nanofibers, which was studied in a wide temperature range 0-100 degrees C by Transient Plane Source method.
机译：在本文中，我们报告了通过氧化还原反应的化学路线，可轻松，方便且就地合成铜/聚苯胺（Cu / PANI）纳米复合材料。 X射线衍射（XRD）确认了聚苯胺和铜的特征峰。紫外可见光谱预测聚苯胺的翡翠氧化态的形成，这是PANT的唯一导电状态。 Cu / PANI纳米复合材料具有原纤维形态，并且铜纳米颗粒嵌入PANI纳米纤维内部。观察到，在室温下，铜增强的聚苯胺纳米复合材料在1.0 Hz至1.0 MHz的宽频率范围内均表现出优异的介电性能。与纯PANI纳米纤维相比，可以观察到纳米复合材料的热导率提高，这是通过瞬态平面源法在0-100摄氏度的宽温度范围内进行研究的。

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