Shape control of nickel selenides synthesized by a simple hydrothermal reduction process

Nickel selenide (NiSe) nanoparticles were prepared from the reaction of a SeCl4 aqueous solution with a NiCl2·6H2O aqueous solution in the presence of polyvinyl alcohol (PVA) as a capping agent and hydrazine hydrate (N2H4·H2O) as a reductant through a hydrothermal method. The size, morphology, chemical composition and purity of these nanoparticles depend on the capping agent, reductant, reaction temperature and time.

Nickel selenide (NiSe) nanoparticles were prepared from the reaction of a SeCl4 aqueous solution with a NiCl2·6H2O aqueous solution in the presence of polyvinyl alcohol (PVA) as a capping agent and hydrazine hydrate (N2H4·H2O) as a reductant through a hydrothermal method. The size, morphology, chemical composition and purity of these nanoparticles depend on the capping agent, reductant, reaction temperature and time.Figure optionsDownload as PowerPoint slideHighlights
► NiSe nanostructures were synthesized via a simple hydrothermal process.
► SeCl4 was chosen as a novel Se source to synthesize NiSe.
► Effects of different parameters on purity, size and morphology were investigated.
► Different morphologies (spheres, bundles, nanoparticles, flowers) were obtained.