The preparation of graphene oxide and the modification of its surface directly with copper pentacyanonitrosylferrate (III) nanoparticles are presented in this work, as well as the characterization of the materials using Fourier-transform infrared spectra, X-ray diffractometry and scanning electron microscopy techniques. Beyond that, the study on the electrochemical behavior of the dispersed bimetallic complex on the graphene oxide, as known as GOCuNP, surface was carried out by the cyclic voltammetry technique. The graphite paste electrode modified with GOCuNP was successfully applied in the detection of hydrazine, presenting limit of detection of 1.58 × 10^–6 mol L⁻¹ at concentration range of 1.00 × 10^–5 to 5.00 × 10^–3 mol L⁻¹ of hydrazine, being so the proposed bimetallic complex formed can be considered as a potential candidate for the manufacturing of electrochemical sensors for hydrazine detection.

这项工作介绍了石墨烯氧化物的制备及其直接用五氰基亚硝酸铁铜（III）纳米颗粒对其表面的改性，以及使用傅里叶变换红外光谱，X射线衍射和扫描电子显微镜技术对材料进行表征。除此之外，还通过循环伏安法研究了分散的双金属配合物在氧化石墨烯表面的电化学行为，即GOCuNP。GOCuNP修饰的石墨糊电极已成功应用于肼的检测，在1.00×10 ^–5至5.00×10 ^–3  mol L的浓度范围内，检测限为1.58×10 ^–6  mol L ^-1肼^-1因此是所建议的形成的双金属配合物可以被认为是制造用于肼检测的电化学传感器的潜在候选者。