Effects of magnetic field on the morphology of nickel nanocrystals prepared by gamma-irradiation in aqueous solutions

Structure and magnetic properties of nickel nanoparticles prepared by selective leaching

“…While the nanoparticles prepared at 0-80 1C were leached using magnetic mixing device, the experimental setup did not allow to use magnetic mixing at À 20 1C (leaching in cryostat). The presence of magnetic field during nickel nanoparticle formation has crucial effect to its size and shape [1].…”

“…It can explain the change in shape of forming particles a partially also the change in grain size. Moreover the leaching process [11] was performed with mechanical stirring and as it was discussed above, the presence of magnetic field during selective leaching may have influence on grain size of formed particles [1].…”

“…Much attention has been paid to preparation of magnetic nanoparticles in last decade [1]. Many papers describe preparation of Ni nanoparticles by reduction of aqueous solution of nickel salts alternatively with or without addition of alcohol or oil [2][3][4][5][6][7].…”

“…Many papers describe preparation of Ni nanoparticles by reduction of aqueous solution of nickel salts alternatively with or without addition of alcohol or oil [2][3][4][5][6][7]. Some other paper describe production of nickel nanoparticles by micelles route [2,9], by utilization of plant extracts as reduction agent [3,8], by gamma irradiation [1] or laser ablation of solids in organic solutions [10]. This paper is focused on preparation of nickel nanoparticles by a selective leaching method.…”

Self-assembly mechanism of Ni nanowires prepared with an external magnetic field

“…For example, Wang et al [13–14] synthesized nickel and cobalt nanowires using a gamma irradiation technique under an external magnetic field. Li et al [15] synthesized nickel chains under a weak magnetic field by hydrazine reduction in ethylene glycol.…”