Preparation, Characterization, Electrochemical And Magnetic Properties Of FeCo Alloy Nanocomposite Based On Carbon Nanotubes

There has been considerable experimental and theoretical attention to the functionallization and potential applications of carbon nanotubes due to their unique structural, mechanical and photoelectric properties, which have become the research focus of carbon-based function materials and an advanced research field of physics, chemistry, material science and other sciences. Although the filling and coating of carbon nanotubes with monometal have been reported for preparing one-dimensional nanomaterials, it is only our group to do tentative work for filling and coating carbon nanotubes with metal alloy nanoparticles via wet chemical method and studying their electrochemical and magnetic properties. In this paper, FeCo alloy nanoparticles were filled in and coated on carbon nanotubes using carbon nanotubes as templates via wet chemical method. One-dimensional FeCo alloy nanocomposites based on carbon nanotubes with adjustable composition and controllable size were prepared, which were characterized by FT-IR,XRD,TEM,HRTEM,SAED and EDX. The electrochemical and magnetic properties of the samples were studied by cyclic voltammetry and a vibrating sample magnetometer (VSM), respectively. The full text reads as follows.1. The surface tension of nitrate (Fe(NO₃)₃ and Co(NO₃)₂) solution, with different concentration, was measured at different temperature, which provided experimental evidence for filling carbon nanotubes. It was found that the surface tension of mixed nitrate solution decreases with increasing cobalt concentration under the same experiment conditions, and the yield of filling increased with increasing cobalt concentration in mixed nitrate solution.2. FeCo alloy nanoparticles, with adjustable composition,...