Fabricación de alúmina anódica porosa de bajo costo: Un estudio comparativo de la morfología producida por uno y dos pasos de anodizado

AUTOR(ES)

Calderón, César Leandro Londoño, Nal, Sandra Menchaca, Saavedra, Diana Carolina Pardo, Silveyra, Josefina, Socolovsky, Leandro Martín, Pampillo, Laura Gabriela, García, Ricardo Martínez

FONTE

Matéria (Rio J.)

DATA DE PUBLICAÇÃO

2016-09

RESUMO

ABSTRACT A simple and low cost method for the fabrication of Nanoporous alumina templates with potential applications for nanowires fabrication is described. As raw material, commercial aluminum has been used. The nanoporous templates obtained have a mean pore diameter of (20 ± 4) nm. The fabrication process consists mainly of two-step anodization. Both steps are described in detail, the obtained material for each anodization step is characterized. The Nanoporous template obtained after two-step anodization present a narrow distribution of the porous size, a better circularity and homogeneous distribution. Cobalt ferrite (CoFe2O4) nanowires structures have been synthesized from the obtained alumina templates. A simple equipment method has been developed. A morphological characterization of the obtained templates and nanowires, by the use of electron microscopy techniques, is also presented.

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