The underpotential deposition that should not be: Cu(1x1) on Au(111)

Patricio Velez; Angel Cuesta; Ezequiel P M Leiva; Vicente A Macagno

doi:10.1016/j.elecom.2012.09.024

The underpotential deposition that should not be: Cu(1x1) on Au(111)

Patricio Velez, Angel Cuesta, Ezequiel P M Leiva, Vicente A Macagno

Chemistry

Universidad Nacional de Cordoba

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Abstract

Underpotential deposition of copper on Au(111) is analyzed in the light of first-principles calculations. The existence of a 1 × 1 Cu monolayer on Au(111) at underpotentials can be only understood taking into account the free energy excess delivered by the adsorption of sulfate anions. While a naked copper pseudomorphic monolayer results thermodynamically less stable than bulk copper, accounting for the interaction with sulfate ions delivers an underpotential shift which is comparable with the experimental value.

Original language	English
Pages (from-to)	54-57
Number of pages	4
Journal	Electrochemistry Communications
Volume	25
Early online date	21 Sept 2012
DOIs	https://doi.org/10.1016/j.elecom.2012.09.024
Publication status	Published - Nov 2012

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10.1016/j.elecom.2012.09.024

The upd that should not be
NOTICE: this is the author’s version of a work that was accepted for publication in Electrochemistry Communications. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Electrochemistry Communications, 25, 54-57 in November 2012. 10.1016/j.elecom.2012.09.024
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title = "The underpotential deposition that should not be: Cu(1x1) on Au(111)",

abstract = "Underpotential deposition of copper on Au(111) is analyzed in the light of first-principles calculations. The existence of a 1 × 1 Cu monolayer on Au(111) at underpotentials can be only understood taking into account the free energy excess delivered by the adsorption of sulfate anions. While a naked copper pseudomorphic monolayer results thermodynamically less stable than bulk copper, accounting for the interaction with sulfate ions delivers an underpotential shift which is comparable with the experimental value.",

author = "Patricio Velez and Angel Cuesta and Leiva, {Ezequiel P M} and Macagno, {Vicente A}",

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AU - Velez, Patricio

AU - Cuesta, Angel

AU - Leiva, Ezequiel P M

AU - Macagno, Vicente A

PY - 2012/11

Y1 - 2012/11

N2 - Underpotential deposition of copper on Au(111) is analyzed in the light of first-principles calculations. The existence of a 1 × 1 Cu monolayer on Au(111) at underpotentials can be only understood taking into account the free energy excess delivered by the adsorption of sulfate anions. While a naked copper pseudomorphic monolayer results thermodynamically less stable than bulk copper, accounting for the interaction with sulfate ions delivers an underpotential shift which is comparable with the experimental value.

AB - Underpotential deposition of copper on Au(111) is analyzed in the light of first-principles calculations. The existence of a 1 × 1 Cu monolayer on Au(111) at underpotentials can be only understood taking into account the free energy excess delivered by the adsorption of sulfate anions. While a naked copper pseudomorphic monolayer results thermodynamically less stable than bulk copper, accounting for the interaction with sulfate ions delivers an underpotential shift which is comparable with the experimental value.

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DO - 10.1016/j.elecom.2012.09.024

M3 - Article

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SP - 54

EP - 57

JO - Electrochemistry Communications

JF - Electrochemistry Communications

ER -

The underpotential deposition that should not be: Cu(1x1) on Au(111)

Abstract

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