Preparation and magnetic property of the composite of nitrogen-doped carbon nanotubes decorated with nickel nanoparticles
Abstract
A magnetic composite of nitrogen-doped carbon nanotubes (CN x) decorated with nickel nanoparticles was synthesized by a chemical precipitation and deoxidization method. The decorated CN x were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and vibrating sample magnetometer (VSM). The XRD pattern showed that CN x, nickel nanoparticles and little nickel oxides coexisted in the composite, TEM observation indicated that nickel nanoparticles were highly dispersed on the outer walls of CN x, Magnetic measurements by VSM demonstrated that the saturated magnetization and remanence of CN x were improved, while the coercivity was lowered after decorating with nickel nanoparticles.
- Publication:
-
Physica E Low-Dimensional Systems and Nanostructures
- Pub Date:
- October 2009
- DOI:
- 10.1016/j.physe.2009.07.007
- Bibcode:
- 2009PhyE...41.1824C
- Keywords:
-
- 61.48.De;
- 75.75+a;
- 81.05.-t;
- Structure of carbon nanotubes boron nanotubes and closely related graphitelike systems;
- Specific materials: fabrication treatment testing and analysis