Effects of the forced convection and current density on the electrodeposition of Zn-Fe-Mo alloys
Josiel Martins Costa, Mariana Sayuri Hori, Ambrosio Florencio de Almeida Neto
ARTIGO
Inglês
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...
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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
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CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQ
COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPES
Fechado
Effects of the forced convection and current density on the electrodeposition of Zn-Fe-Mo alloys
Josiel Martins Costa, Mariana Sayuri Hori, Ambrosio Florencio de Almeida Neto
Effects of the forced convection and current density on the electrodeposition of Zn-Fe-Mo alloys
Josiel Martins Costa, Mariana Sayuri Hori, Ambrosio Florencio de Almeida Neto
Fontes
Chemical physics (Fonte avulsa) |