Hydrothermal synthesis and characterization of NiS flower-like architectures

Under the influence of thiocyanate anions （SCN-） and cetyltrimethyl ammonium bromide （CTAB）, NiS flower-like architectures were successfully synthesized by a one-step hydrothermal method. The syn-thesized flower-like architectures, with a multilayered and highly ordered texture, have diameters of several micrometers. X-ray powder diffraction （XRD） shows that the NiS flower-like architectures are rhombohedral crystalline. On the basis of condition-dependent experiments, the diffusion-limited aggregation （DLA） model and cage effect were used to explain the growth process of rhombohedral crystalline NiS flower-like architectures. Magnetic measurements showed that the coercivity （He） of the as-obtained NiS flower-like architectures was 102.14 Oe.