可控制备内担载金属镍磁性碳纳米管

Controllable Synthesized the Magnetic Nickel-Filled Carbon Nanotubes

采用以浓硝酸处理碳纳米管得到碳帽打开的碳纳米管短管,后采用超声强化浸渍法制备内担载镍金属的磁性碳纳米管。在镍溶液浸渍过程中,通过调控超声时间,镍溶液浓度可控制备不同镍含量的磁性碳纳米管。将制得的磁性碳纳米管采用透射电子显微镜(TEM)、X射线衍射仪(XRD)、红外光谱仪(IR)、振动样品磁强计(VSM)等表征方法进行了测试,结果表明了通过这种方法可以成功地将镍金属内担载进入碳纳米管,使碳纳米管具有较强磁性。而且碳纳米管表面引入功能化基团和具有较大的比表面积,使其具有十分良好的应用前景。

The carbon nanotubes （CNTs） were treated by concentrated nitric acid. A series of magnetic nickel -filled CNTs with different nickel contents were prepared by ultrasound enhancement impregnation method. The magnetic CNTs were characterized by TEM, XRD,VSM, FTIR to analyze their morphology and magnetic properties. The analysis results suggested that the prepared CNTs exhibit some of value of magnetization and high degree of functionalization.