Effect of the Surfactant on the Growth and Oxidation of Iron Nanoparticles

Journal of Nanomaterials - Tập 2015 Số 1 - 2015
Álvaro de Jesús Ruíz-Baltazar1, Rodrigo Esparza1, G. Rosas2, R. Pérez1
1Center for Applied Physics and Advanced Technology, National Autonomous University of Mexico, Boulevard Juriquilla 3001, 76230 Santiago de Querétaro, QRO, Mexico
2Metallurgical Research Institute, Michoacan University of Saint Nicholas of Hidalgo, Building U, University City, 58000 Morelia, MICH, Mexico

Tóm tắt

Fe nanoparticles and branched nanostructures of iron oxide were synthesized by chemical reduction in aqueous phase. The mechanism of formation of iron oxides as a function of the amount of surfactant employed during the synthesis process was studied. Specifically Fe, Fe2O3, and Fe3O4 nanoparticles were obtained. The oxidation of Fe to Fe3O4 and finally to Fe2O3 was carried out by oxidative etching process, decreasing the amount of stabilizer agent. The structures obtained were characterized by high resolution (HRTEM) and scanning/transmission (STEM) electron microcopies, energy dispersive spectroscopy (EDS), and optical spectroscopy (UV‐Vis and IR).

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