论文标题
聚苯胺/GNP（石墨烯纳米片）纳米复合材料的热稳定性和光电行为
Thermal stability and optoelectronic behavior of polyaniline/GNP (graphene nanoplatelets) nanocomposites
论文作者
论文摘要
聚苯胺和石墨烯纳米片（PANI-GNP）纳米复合材料通过使用氧化剂二硫酸铵（APS）的原位氧化聚合来合成聚苯胺的原位氧化聚合。与PANI相比，纳米复合材料中的GNP质量在5、10和15 wt％变化。合成的聚苯胺涂层石墨烯纳米片（PANI-GNP）纳米复合材料是化学表征的，并使用傅立叶变换红外光谱（FTIR），拉曼光谱，扫描电子显微镜（SEM），UV-VIS光谱光谱谱图和X射线扩散分析（X-Ray diffraction（XRD））。 FTIR和拉曼光谱分析证实了聚苯胺在GNP上的均匀涂层。 SEM显微照片和XRD模式证明了样品的聚合质量和结晶度。 UV-VIS分析表明，由于带隙的变化，聚苯胺的带隙降低了，这证实纳米复合材料更适合于光电子。 TGA分析表明，随着GNP质量的增加，PANI的热稳定性增加。这项研究表明，GNP作为填充物在PANI的形态，电气，光学和热特性中有效修饰的潜力。
Polyaniline and graphene nanoplatelets (PANI-GNP) nanocomposites are synthesized by in situ oxidative polymerization of polyaniline using an oxidizing agent, ammonium peroxy disulphate (APS). The mass of GNP in the nanocomposites varied by 5, 10, and 15 wt% compared to PANI. The synthesized polyaniline coated graphene nanoplatelets (PANI-GNP) nanocomposites are chemically characterized and using Fourier Transform Infrared Spectroscopy (FTIR), Raman spectroscopy, Scanning electron microscopy (SEM), UV-Vis spectroscopy, and X-ray diffraction analysis (XRD). FTIR and Raman spectroscopy analysis confirmed the uniform coating of polyaniline on GNP. The SEM micrograph and XRD pattern demonstrate the polymerization quality and crystallization degree of samples. UV-Vis analysis showed a decrease in the bandgap of polyaniline, which confirms that nanocomposites are more suitable for optoelectronic application because of variation in the bandgap. TGA analysis showed the thermal stability of PANI is increased with the increased mass of GNP. This study suggests the potential of GNP as a filler for efficient modification in the morphological, electrical, optical, and thermal properties of PANI.
