摘要

Flower-like microstructures of ferromagnetic Ni nanotips have been synthesized in aqueous solution at 140 degrees C for 12 h. XRD pattern indicated the sample is cubic Ni with lattice constant a=3.514 angstrom. FE-SEM shown the formation process of Ni sample. Room temperature magnetic characterization of as-prepared Ni sample demonstrates much enhanced ferromagnetic property. The hydrazine hydrate was used as reduced agent and ligand in present synthesis, the possible formation mechanism was also discussed.