Decorating carbon nanotubes with Cobalt nanoparticles

作者：Dong Zhengping; Ma Kun; He Jianguo; Wang Juanjuan; Li Rong^*; Ma Jiantai

来源：Materials Letters, 2008, 62(24): 4059-4061.

DOI：10.1016/j.matlet.2008.06.017

• multiwalls carbon nanotubes
• Cobalt nanoparticles
• magnetic property

A magnetic composite of muldwalls carbon nanotubes (MWNTs) decorated with Cobalt nanoparticles was synthesized successfully by a simple chemical precipitation and deoxidization method. The composite was analyzed by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The pattern of XRD indicated that MWNTs and Cobalt nanoparticles coexisted in the composite. The TEM images revealed that the Cobalt nanoparticles were distributed on the surface of the MWNTs, with the size ranging from 5 to 15 mn. The hysteresis loops of the decorated MWNTs were measured by a vibrating sample magnetometer (VSM), the ferromagnetic signature emerged with the saturated magnetization of 5.8 emu/g, and the coercive of 310 Oe.

• 出版日期2008-9-15
• 单位兰州大学