Synthesis, Characterization and Magnetic Properties of Nanocrystalline Nickel

Nickel nanoparticles were synthesized by thermal decomposition route with using cappant as Triphenyl phosphine (TPP). The product was characterized in details by X-ray diffraction; transmission electron microscope and Fourier transform infrared techniques. From XRD the particles size was 1.22 nm. But from TEM results it was shown that about 10nm. This was due to the particles were covered by cappant. Magnetic measurement was carried out by vibrating sample magnetometer (VSM). Magnetic measurement attributed to the result of superparamagnetic behavior at 4K and also at 300K. So nickel nanoparticles of size 1.22 nm behave as superparamagnetic particles in the temperature range 4K-300K.