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|Title:||Effects of the forced convection and current density on the electrodeposition of Zn-Fe-Mo alloys|
|Author:||Costa, Josiel Martins|
Hori, Mariana Sayuri
de Almeida Neto, Ambrosio Florencio
|Abstract:||In this study, zinc ternary alloys known for their catalytic application in desulphurization processes were developed by the electrodeposition process. Zn-Fe-Mo ternary alloy was synthesized from an electrolytic bath. The influence of forced convection (9-51 rpm) and current density (1.72-58.28 mA cm(-2)) on the electrodeposition was evaluated by using a central composite design. It was observed that the decrease in the electric current density resulted in an increase in electrodeposition efficiency from 36 to 68%. According to statistical analysis, the stirring velocity was not significant, however, it was verified that the forced convection phenomenon contributed to increasing the deposition from 30 to 72% for Zn and Fe, and from 37 to 90% for Mo. In addition, the alloys obtained were characterized by X-ray diffraction and scanning electron microscopy (SEM). Diffractograms evidenced the presence of crystalline structures and the SEM micrographs presented coatings with rough and fibrous appearanc|
|Appears in Collections:||FEQ - Artigos e Outros Documentos|
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