INVESTIGADORES
MARTINEZ GARCIA Ricardo
congresos y reuniones científicas
Título:
Síntesis de un composite de nanopartículas soportadas en grafeno químicamente reducido
Autor/es:
C, COSIO CASTAÑEDA; RICARDO MARTÍNEZ GARCÍA; LEANDRO M. SOCOLOVSKY
Lugar:
Villahermosa, Tabasco
Reunión:
Congreso; VII Congreso Nacional de Cristalografía; 2014
Institución organizadora:
Sociedad Mexicana de Cristalografía. Instituto de Física, UNAM
Resumen:
Novel gamma-Fe2O3@APTES@rGO composites are successfully synthesized by using graphene oxide and silanized maghemite nanoparticles. Graphene oxide and maghemite were obtained by Hummers and Massart methods, respectively. The silanization process was done to functionalize maghemite surface with a controllable quantity of amino groups. Then, by adding aqueous graphene oxide suspension, the bonding between graphene oxide and silanized maghemite nanoparticles was done in refluxing conditions. Afterwards, chemical reduced graphene oxide reaction was realized by addition of hydrazine solution. The characterization of -Fe2O3@APTES@rGO composites was studied by X-ray Diffraction, Fourier Transformed Infrared Spectroscopy, thermogravimetric analysis and scanning electron microscopy.