Structural Characterization of Fe-Ag Bimetallic Nanoparticles Synthesized by Chemical Reduction
A. Ruíz-Baltazar *
nstituto de Investigaciones Metalúrgicas, UMSNH, Edificio U, Ciudad Universitaria, CP 58060, Morelia Michoacán, Mexico
R. Esparza
Centro de Física Aplicada y Tecnología Avanzada, UNAM, Campus Juriquilla, Blv. Juriquilla, 3600, Juriquilla Querétaro. Mexico
R. Pérez
Centro de Física Aplicada y Tecnología Avanzada, UNAM, Campus Juriquilla, Blv. Juriquilla, 3600, Juriquilla Querétaro. Mexico
G. Rosas
nstituto de Investigaciones Metalúrgicas, UMSNH, Edificio U, Ciudad Universitaria, CP 58060, Morelia Michoacán, Mexico
*Author to whom correspondence should be addressed.
Abstract
Aims: The main objective of this research is to establish an efficient route for obtaining dumbbell bimetallic nanoparticles. Likewise, correlating the results of structural characterization with the particles synthesis conditions.
Methodology: Fe nanoparticles were obtained using Fe (III) Chloride hexahydrate (FeCl3·6H2O) as precursor and sodium borohydride (NaBH4) as reducing agent, subsequently, a solution of silver nitrate (AgNO3) was added to their action.
Results: Bimetallic particles were obtained in an aqueous medium and were later studied using the technique of high-resolution transmission electron microscopy (HREM), ultraviolet visible spectroscopy (UV-is) and quasi-elastic light scattering (QELS).
Conclusion: Particles with semi-spherical morphology were observed, likewise, a particle size distribution of 20nmwas recorded for the particles of Fe and 7nmin the case of Ag additionally inter planar distances corresponding to oxides of Fe were found.
Keywords: Chemical synthesis, nanoparticles, transmission electron microscopy