Dielectric material based on hybrid PANI-metal nanocomposites always gained an immense research interest due to its unique properties. Herein, we have synthesized iron oxide nanoparticles embedded two different binary transition metal doped PANI nanocomposites via simple in situ rapid mixing chemical oxidative polymerization method. Morphological, structural, electronic and chemical composition of the composites were systematically studied. The influence of dopant concentration in tuning PANI surface from flake like to spherical bead like morphology was analysed by high resolution transmission electron microscopy. Moreover, dielectric parameters as function of frequency have been investigated at room temperature in a frequency range 100Hz–2MHz and the result showed that the as prepared flake like nanocomposites - 0.3 M Cu-Fe-PANI and 0.7 M Mn-Fe-PANI systems are promising dielectric materials.

基于杂化PANI-金属纳米复合材料的介电材料因其独特的性能而一直引起巨大的研究兴趣。本文中，我们通过简单的原位快速混合化学氧化聚合方法合成了嵌入两种不同的二元过渡金属掺杂的PANI纳米复合材料的氧化铁纳米粒子。系统地研究了复合材料的形态，结构，电子和化学组成。通过高分辨率透射电子显微镜分析了掺杂剂浓度对从薄片状到球形珠状形态的PANI表面整形的影响。此外，在室温下在100Hz–2MHz的频率范围内研究了介电参数随频率变化的结果，结果表明所制备的薄片状纳米复合材料-0.3 M Cu-Fe-PANI和0。