Rotating Ring-Disk Electrode Study of the Adsorption of Lead on Gold in 0.5M Potassium Chloride

V. A. Vicente; Stanley Bruckenstein

doi:10.1021/ac60334a008

Rotating Ring-Disk Electrode Study of the Adsorption of Lead on Gold in 0.5M Potassium Chloride

V. A. Vicente
, Stanley Bruckenstein

Chemistry

SUNY Buffalo

Research output: Contribution to journal › Article › peer-review

52 Scopus citations

Abstract

The underpotential deposition of Pb(0) on gold occurred at 0 V > E_D > -0.6 V (SCE) using cyclic voltammetry at a rotating gold ring-disk electrode. A complete monlayer of Pb atoms on gold is equivalent at 420 μC/geo-metric cm2 or about 247 μC/reaI cm². Bulk Pb(0) deposition does not occrr until this amount of charge has been consumed. The monolayer of underpotential Pb(0) yields three peaks upon anodic stripping. Further, adsorption of Pb(ll) on gold occurs during the cathodic disk potential scan and begins at about +0.6 V. From ring collection data, about 20% of a monolayer equivalent remains adsorbed at the disk as a lead(II) species during the anodic disk potential scan. Complete desorption occuss just before the potential for the dissolution of gold (E_D ≃ +0.7 V) in the chloride medium.

Original language	English
Pages (from-to)	2036-2043
Number of pages	8
Journal	Analytical Chemistry
Volume	45
Issue number	12
DOIs	https://doi.org/10.1021/ac60334a008
State	Published - Oct 1 1973

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@article{b67146230de44872a2dc3dbda20494bb,

title = "Rotating Ring-Disk Electrode Study of the Adsorption of Lead on Gold in 0.5M Potassium Chloride",

abstract = "The underpotential deposition of Pb(0) on gold occurred at 0 V > ED > -0.6 V (SCE) using cyclic voltammetry at a rotating gold ring-disk electrode. A complete monlayer of Pb atoms on gold is equivalent at 420 μC/geo-metric cm2 or about 247 μC/reaI cm2. Bulk Pb(0) deposition does not occrr until this amount of charge has been consumed. The monolayer of underpotential Pb(0) yields three peaks upon anodic stripping. Further, adsorption of Pb(ll) on gold occurs during the cathodic disk potential scan and begins at about +0.6 V. From ring collection data, about 20\% of a monolayer equivalent remains adsorbed at the disk as a lead(II) species during the anodic disk potential scan. Complete desorption occuss just before the potential for the dissolution of gold (ED ≃ +0.7 V) in the chloride medium.",

author = "Vicente, \{V. A.\} and Stanley Bruckenstein",

year = "1973",

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doi = "10.1021/ac60334a008",

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TY - JOUR

T1 - Rotating Ring-Disk Electrode Study of the Adsorption of Lead on Gold in 0.5M Potassium Chloride

AU - Vicente, V. A.

AU - Bruckenstein, Stanley

PY - 1973/10/1

Y1 - 1973/10/1

N2 - The underpotential deposition of Pb(0) on gold occurred at 0 V > ED > -0.6 V (SCE) using cyclic voltammetry at a rotating gold ring-disk electrode. A complete monlayer of Pb atoms on gold is equivalent at 420 μC/geo-metric cm2 or about 247 μC/reaI cm2. Bulk Pb(0) deposition does not occrr until this amount of charge has been consumed. The monolayer of underpotential Pb(0) yields three peaks upon anodic stripping. Further, adsorption of Pb(ll) on gold occurs during the cathodic disk potential scan and begins at about +0.6 V. From ring collection data, about 20% of a monolayer equivalent remains adsorbed at the disk as a lead(II) species during the anodic disk potential scan. Complete desorption occuss just before the potential for the dissolution of gold (ED ≃ +0.7 V) in the chloride medium.

AB - The underpotential deposition of Pb(0) on gold occurred at 0 V > ED > -0.6 V (SCE) using cyclic voltammetry at a rotating gold ring-disk electrode. A complete monlayer of Pb atoms on gold is equivalent at 420 μC/geo-metric cm2 or about 247 μC/reaI cm2. Bulk Pb(0) deposition does not occrr until this amount of charge has been consumed. The monolayer of underpotential Pb(0) yields three peaks upon anodic stripping. Further, adsorption of Pb(ll) on gold occurs during the cathodic disk potential scan and begins at about +0.6 V. From ring collection data, about 20% of a monolayer equivalent remains adsorbed at the disk as a lead(II) species during the anodic disk potential scan. Complete desorption occuss just before the potential for the dissolution of gold (ED ≃ +0.7 V) in the chloride medium.

UR - https://www.scopus.com/pages/publications/8344283886

U2 - 10.1021/ac60334a008

DO - 10.1021/ac60334a008

M3 - Article

AN - SCOPUS:8344283886

SN - 0003-2700

VL - 45

SP - 2036

EP - 2043

JO - Analytical Chemistry

JF - Analytical Chemistry

IS - 12

ER -

Rotating Ring-Disk Electrode Study of the Adsorption of Lead on Gold in 0.5M Potassium Chloride

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