| Synthesis of Cobalt Nanoparticles: Comparative Evaluation of Different Precursors |
| Paper ID : 2341-UFGNSM13-FULL |
| Authors: |
| Abstract: |
| This paper reports chemical reduction synthesis of cobalt nanoparticles using two cobalt precursor agents: Cobalt Sulfate and Cobalt Chloride. Co nanoparticles were synthesized by Co2+ reduction, using hydrazine (N2H4) in a basic solution of ethylene glycol (EG). The effect of two different precursors were comparatively analyzed through the structure, morphology and magnetic properties of the products synthesized from two different mediums, were characterized by X-ray diffraction (XRD), Scanning Electron Microscopy (SEM) and vibrating sample magnetometer (VSM). Results showed that depending on the precursor type, the size, structure, morphology and magnetic properties of the nano-products would be varied. In addition to precursor type and concentration, the relative effects of different parameters such as pH, reaction temperature, and molar ratio of N2H4 to Co2+ also were investigated. The results indicated that the nanoparticles mean diameter range between 60 to 100 nm, differing with precursor type. Results from kinetics studies showed that temperature and precursor concentration were the most influential parameters on production rate. |
| Keywords: |
| Cobalt nanoparticles, Reduction synthesis, Precursor, Structure, Morphology |
| Status : Paper Accepted (Poster Presentation) |
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