Size-controlled synthesis, growth mechanism and magnetic properties of cobalt microspheres

作者：Ding, Mingye^*; Xi, Junhua; Ji, Zhenguo

来源：Materials Letters, 2017, 201: 27-30.

DOI：10.1016/j.matlet.2017.04.124

• Cobalt microspheres
• Crystal growth
• Magnetic properties
• Magnetic functional materials

Monodispersed cobalt microspheres with remarkably uniform morphology and tunable size have been successfully synthesized via a facile and effective solvothermal route. It is found that sodium hydroxide has a great influence on the size and shape of the resulting cobalt powders. Through adjusting the molar ratio of NaOH to Co2+, the size of cobalt microspheres can be precisely manipulated. In addition, the magnetic properties of the as -synthesized samples demonstrate that cobalt microspheres exhibit ferromagnetic property related to their sizes. More importantly, this study not only provides a facile and effective strategy to prepare the cobalt microspheres with tunable sizes, but also gives a reference for the synthesis of other magnetic functional materials.

• 出版日期2017-8-15
• 单位杭州电子科技大学