Graphene oxide-based materials are well known for their electrical properties. Novel ternary composite films (PVDF-GO-FK-31) were prepared by introducing a metal complex, for the first time, in a graphene oxide-PVDF polymer matrix (where PVDF = polyvinylidene fluoride; GO = graphene oxide; FK-31 = [Ni(PPh₃)₂(SCOf)₂] (SCOf = furan-2-thiocarboxylate). In these composites, the graphene oxides show strong interfacial bonding with the PVDF matrix due to the incorporation of the FK-31 molecules. The experimental results showed that the incorporation of FK-31 into the PVDF-GO matrix greatly improved the dielectric constant and suppressed dielectric loss values. The composites thus may be used as dielectric materials for electronic capacitors.

Graphical Abstract

For the first time, a ternary composite was prepared by incorporating a newly synthesized square planar nickel(II) complex in a graphene oxide-PVDF polymer matrix and its dielectric and electric properties were studied. With increasing concentration of the complex in the ternary composite its dielectric constant and electrical conductivity increases while the dielectric loss decreases.

中文翻译：

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氧化石墨烯-聚偏氟乙烯三元复合薄膜的硫代镍(II)络合物的制备、结构特征、介电和电学特性

氧化石墨烯基材料以其电性能而闻名。新型三元复合薄膜（PVDF-GO-FK-31）是通过首次在氧化石墨烯-PVDF聚合物基体中引入金属络合物而制备的（其中PVDF=聚偏二氟乙烯；GO=氧化石墨烯；FK-31= [Ni(PPh ₃ ) ₂ (SCOf) ₂ ] (SCOf = 呋喃-2-硫代羧酸盐)。在这些复合材料中，由于 FK-31 分子的结合，氧化石墨烯与 PVDF 基体表现出很强的界面结合。结果表明，将FK-31掺入PVDF-GO基体中，大大提高了介电常数，抑制了介电损耗值，因此该复合材料可用作电子电容器的介电材料。

图形概要

首次通过将新合成的方形平面镍（II）配合物掺入氧化石墨烯-PVDF聚合物基体中制备了三元复合材料，并研究了其介电和电性能。随着三元复合材料中配合物浓度的增加，其介电常数和电导率增加，而介电损耗降低。