Spectroelectrochemistry at the liquid|liquid interface: Parallel beam UV-vis absorption

Alberto Martínez; Alvaro Colina; Robert A W Dryfe; Virginia Ruiz

doi:10.1016/j.electacta.2008.12.028

Spectroelectrochemistry at the liquid|liquid interface: Parallel beam UV-vis absorption

Alberto Martínez, Alvaro Colina, Robert A W Dryfe, Virginia Ruiz

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

Abstract

We present two novel UV-vis absorption spectroelectrochemical cells for the study of electrochemical processes at polarized liquid|liquid interfaces based on the parallel incidence of the light beam with respect to the interface. The first one is a crude design (Cell 1) based on an existing cylindrical cell for liquid|liquid electrochemistry. The second design (Cell 2) is superior and based on the assembly of the four-electrode set-up inside a rectangular quartz spectrophotometric cuvette. In both cases it is demonstrated that absorption spectroelectrochemistry in parallel beam configuration can be a sensitive probe of processes such as ion transfer at the polarized liquid|liquid interface, if the contribution from the bulk of the sampled phase is removed. In particular, the electrochemical and spectroscopic performance of both cell designs was evaluated using the well-known transfer of Ru(bpy)32+ across the water|1,2-DCE interface as a model reaction. © 2008 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	5071-5076
Number of pages	5
Journal	Electrochimica Acta
Volume	54
Issue number	22
DOIs	https://doi.org/10.1016/j.electacta.2008.12.028
Publication status	Published - 1 Sept 2009

Keywords

Chronoabsorptometry
Ion transfer
ITIES
Liquid|liquid electrochemistry
Spectroelectrochemistry

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10.1016/j.electacta.2008.12.028

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@article{887a12e6f7d44c29b30d361cde71e30e,

title = "Spectroelectrochemistry at the liquid|liquid interface: Parallel beam UV-vis absorption",

abstract = "We present two novel UV-vis absorption spectroelectrochemical cells for the study of electrochemical processes at polarized liquid|liquid interfaces based on the parallel incidence of the light beam with respect to the interface. The first one is a crude design (Cell 1) based on an existing cylindrical cell for liquid|liquid electrochemistry. The second design (Cell 2) is superior and based on the assembly of the four-electrode set-up inside a rectangular quartz spectrophotometric cuvette. In both cases it is demonstrated that absorption spectroelectrochemistry in parallel beam configuration can be a sensitive probe of processes such as ion transfer at the polarized liquid|liquid interface, if the contribution from the bulk of the sampled phase is removed. In particular, the electrochemical and spectroscopic performance of both cell designs was evaluated using the well-known transfer of Ru(bpy)32+ across the water|1,2-DCE interface as a model reaction. {\textcopyright} 2008 Elsevier Ltd. All rights reserved.",

keywords = "Chronoabsorptometry, Ion transfer, ITIES, Liquid|liquid electrochemistry, Spectroelectrochemistry",

author = "Alberto Mart{\'i}nez and Alvaro Colina and Dryfe, {Robert A W} and Virginia Ruiz",

year = "2009",

month = sep,

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doi = "10.1016/j.electacta.2008.12.028",

language = "English",

volume = "54",

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journal = "Electrochimica Acta",

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TY - JOUR

T1 - Spectroelectrochemistry at the liquid|liquid interface: Parallel beam UV-vis absorption

AU - Martínez, Alberto

AU - Colina, Alvaro

AU - Dryfe, Robert A W

AU - Ruiz, Virginia

PY - 2009/9/1

Y1 - 2009/9/1

N2 - We present two novel UV-vis absorption spectroelectrochemical cells for the study of electrochemical processes at polarized liquid|liquid interfaces based on the parallel incidence of the light beam with respect to the interface. The first one is a crude design (Cell 1) based on an existing cylindrical cell for liquid|liquid electrochemistry. The second design (Cell 2) is superior and based on the assembly of the four-electrode set-up inside a rectangular quartz spectrophotometric cuvette. In both cases it is demonstrated that absorption spectroelectrochemistry in parallel beam configuration can be a sensitive probe of processes such as ion transfer at the polarized liquid|liquid interface, if the contribution from the bulk of the sampled phase is removed. In particular, the electrochemical and spectroscopic performance of both cell designs was evaluated using the well-known transfer of Ru(bpy)32+ across the water|1,2-DCE interface as a model reaction. © 2008 Elsevier Ltd. All rights reserved.

AB - We present two novel UV-vis absorption spectroelectrochemical cells for the study of electrochemical processes at polarized liquid|liquid interfaces based on the parallel incidence of the light beam with respect to the interface. The first one is a crude design (Cell 1) based on an existing cylindrical cell for liquid|liquid electrochemistry. The second design (Cell 2) is superior and based on the assembly of the four-electrode set-up inside a rectangular quartz spectrophotometric cuvette. In both cases it is demonstrated that absorption spectroelectrochemistry in parallel beam configuration can be a sensitive probe of processes such as ion transfer at the polarized liquid|liquid interface, if the contribution from the bulk of the sampled phase is removed. In particular, the electrochemical and spectroscopic performance of both cell designs was evaluated using the well-known transfer of Ru(bpy)32+ across the water|1,2-DCE interface as a model reaction. © 2008 Elsevier Ltd. All rights reserved.

KW - Chronoabsorptometry

KW - Ion transfer

KW - ITIES

KW - Liquid|liquid electrochemistry

KW - Spectroelectrochemistry

U2 - 10.1016/j.electacta.2008.12.028

DO - 10.1016/j.electacta.2008.12.028

M3 - Article

VL - 54

SP - 5071

EP - 5076

JO - Electrochimica Acta

JF - Electrochimica Acta

IS - 22

ER -

Spectroelectrochemistry at the liquid|liquid interface: Parallel beam UV-vis absorption

Abstract

Keywords

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