Composites of poly(p-phenylene vinylene) (PPV) and different carbon nanostructures, such as fullerene C₆₀, multi-walled carbon nanotubes (MWCNTs), single-walled carbon nanotubes (SWCNTs), graphene oxide (GO), and graphene nanoplatelets (GNPLs), were produced by Wittig’s soluble precursor procedure in solutions containing dispersed particles of carbon nanomaterials. These composites were investigated using infrared and Raman spectroscopy, scanning and transmission electron microscopy, thermogravimetry analysis, adsorption/desorption of N₂ measurement, and electrochemistry. Composites are produced in the form of nanostructural porous materials. A significant increase in the BET (Brunauer–Emmett–Teller) surface is observed for composites in comparison to unmodified PPV. The highest BET surface area of 125 m²·g⁻¹ was obtained for the PPV/SWCNT composite. Compared to pristine PPV, composites also exhibit higher thermal stability. The effect of the content of composite components on their electrochemical properties was also investigated. The electronic interaction between components of composite significantly affects their electrochemical properties, particularly in the case of oxidation processes. PPV incorporated into network of carbon nanostructures exhibit two well separated oxidation steps. The carbon component is responsible for the shift of the PPV reduction and oxidation processes toward less negative and less positive potentials, respectively, significantly lowering the energy of the band gap.

Graphical abstract

中文翻译：

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并入碳纳米结构的聚（对苯撑乙烯）

聚对苯撑乙烯 (PPV) 和不同碳纳米结构的复合材料，例如富勒烯 C ₆₀、多壁碳纳米管 (MWCNT)、单壁碳纳米管 (SWCNT)、氧化石墨烯 (GO) 和石墨烯纳米片(GNPL)，是通过 Wittig 的可溶性前体程序在含有分散的碳纳米材料颗粒的溶液中生产的。使用红外和拉曼光谱、扫描和透射电子显微镜、热重分析、N _{2的吸附/解吸对这些复合材料进行了研究。}测量和电化学。复合材料以纳米结构多孔材料的形式生产。与未改性的 PPV 相比，复合材料的 BET (Brunauer-Emmett-Teller) 表面显着增加。最高BET表面积为125 m ² ·g ^-1获得了PPV / SWCNT复合材料。与原始 PPV 相比，复合材料还表现出更高的热稳定性。还研究了复合组分的含量对其电化学性能的影响。复合材料组分之间的电子相互作用显着影响其电化学性能，尤其是在氧化过程中。结合到碳纳米结构网络中的 PPV 表现出两个分离良好的氧化步骤。碳成分负责将 PPV 还原和氧化过程分别向较小的负和较小的正电位转变，从而显着降低带隙的能量。

图形概要