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In this research, Silver—nickel alloy nanocomposites has been synthesized by reducing mixture solution of Ni2+, Ag+ with hydrazine hydrate as reducer and OP-10 as surfactant. Silver—nickel alloy nanocomposites were characterized by FT-IR, XRD, SEM. And the electrochemical properties of the samples were studied by cyclic voltammetry. Ag-Ni/PANI composites were prepared by in-situ synthesis and emulsion polymerization, and the effect of conduction on the conductivity was investigated including content of alloy. The detailed analysis of the synthesis conditions shows that the reduction takes place in alkaline environment and low-temperature is propitious to generate alloy solid-solution grain. Composites prepared by emulsion polymerization in acidic aqueous solutions synthesis of polyaniline shows higher conductivity than pure polymer, due to the strong interaction between alloy particles and doping PANI.

This paper presents a synthetic method of graphene load nickel nanoparticles composites. Hydrothermal process is simple and convenient way, neither surfactant is needed nor by products will exist serve hydrazine hydrate as reductant. X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) analyses were used to characterization the morphology of the graphene load nickel nanoparticles composites, and cyclic voltammetry (CV) was used to characterization the electrical properties of the composites. The results of XRD and FTIR show that the complexes were successfully synthesized by this method. Moreover, the good dispersibility and relatively uniform particle size of the complexes can be obviously observed from the SEM image. And the cyclic voltammetry curves exhibit good electrical properties of graphene load nickel nanoparticles composites. All the conclusions are based on the experimental results.