Underpotential Deposition of Copper on Gold in Alkaline and Acidic Media | Zendy

R. Vicente | Zendy; Pablo S. Fernández | Zendy; Matheus B. C. de Souza | Zendy

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Underpotential Deposition of Copper on Gold in Alkaline and Acidic Media

Author(s) -

R. Vicente,

Pablo S. Fernández,

Matheus B. C. de Souza

Publication year - 2017

Publication title -

anais do congresso de iniciação científica da unicamp

Language(s) - English

Resource type - Conference proceedings

ISSN - 2447-5114

DOI - 10.19146/pibic-2017-78786

Subject(s) - copper , underpotential deposition , inorganic chemistry , chemistry , deposition (geology) , metallurgy , electrochemistry , materials science , geology , cyclic voltammetry , electrode , paleontology , sediment

We studied the underpotential deposition (UPD) of copper on polycrystalline gold in both alkaline and acidic media to determine the dependence of the copper coverage on the equilibrium potential of the system and also the thermodynamic conditions for the formation of a copper monolayer. The behavior of the underpotential deposition was studied through potentiostatic and potentiodynamic experiments. Results shows that the process is slower in alkaline media and occurs at higher potentials due to the very low activity of Cu(II) ions in this condition.

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