Evaluation of a naive model for square wave voltammetry at a microdisk electrode

Patrick Enright; John Cassidy; Anthony Betts

doi:10.1016/j.jelechem.2008.04.003

Evaluation of a naive model for square wave voltammetry at a microdisk electrode

Patrick Enright, John Cassidy, Anthony Betts

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

4 Citations (Scopus)

Abstract

A square wave voltammetric waveform (SWV) was applied to an inlaid microdisk electrode in a solution of K₄[Fe(CN)₆]. A simple model relying on the assumption of steady state current throughout the scan was used to model the current potential behaviour. However, experimental peak current magnitudes were between 30% and 50% greater than those predicted by the model. The model predicts an increase of peak current and peak width at half height with pulse height E_sw and frequency f, and non effect of the step height, ΔE_s. Experimental peak current magnitudes were found to increase with increasing E_sw but were not affected by f or ΔE_s.

Original language	English
Pages (from-to)	206-208
Number of pages	3
Journal	Journal of Electroanalytical Chemistry
Volume	619-620
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jelechem.2008.04.003
Publication status	Published - 15 Jul 2008

Keywords

Disk microelectrode
Square wave voltammetry

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10.1016/j.jelechem.2008.04.003

https://arrow.tudublin.ie/scschcpsart/6Licence: CC BY-NC-SA

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title = "Evaluation of a naive model for square wave voltammetry at a microdisk electrode",

abstract = "A square wave voltammetric waveform (SWV) was applied to an inlaid microdisk electrode in a solution of K4[Fe(CN)6]. A simple model relying on the assumption of steady state current throughout the scan was used to model the current potential behaviour. However, experimental peak current magnitudes were between 30% and 50% greater than those predicted by the model. The model predicts an increase of peak current and peak width at half height with pulse height Esw and frequency f, and non effect of the step height, ΔEs. Experimental peak current magnitudes were found to increase with increasing Esw but were not affected by f or ΔEs.",

keywords = "Disk microelectrode, Square wave voltammetry",

author = "Patrick Enright and John Cassidy and Anthony Betts",

note = "Funding Information: J.C. acknowledges the Team Research Grant from the DIT.",

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T1 - Evaluation of a naive model for square wave voltammetry at a microdisk electrode

AU - Enright, Patrick

AU - Cassidy, John

AU - Betts, Anthony

N1 - Funding Information: J.C. acknowledges the Team Research Grant from the DIT.

PY - 2008/7/15

Y1 - 2008/7/15

N2 - A square wave voltammetric waveform (SWV) was applied to an inlaid microdisk electrode in a solution of K4[Fe(CN)6]. A simple model relying on the assumption of steady state current throughout the scan was used to model the current potential behaviour. However, experimental peak current magnitudes were between 30% and 50% greater than those predicted by the model. The model predicts an increase of peak current and peak width at half height with pulse height Esw and frequency f, and non effect of the step height, ΔEs. Experimental peak current magnitudes were found to increase with increasing Esw but were not affected by f or ΔEs.

AB - A square wave voltammetric waveform (SWV) was applied to an inlaid microdisk electrode in a solution of K4[Fe(CN)6]. A simple model relying on the assumption of steady state current throughout the scan was used to model the current potential behaviour. However, experimental peak current magnitudes were between 30% and 50% greater than those predicted by the model. The model predicts an increase of peak current and peak width at half height with pulse height Esw and frequency f, and non effect of the step height, ΔEs. Experimental peak current magnitudes were found to increase with increasing Esw but were not affected by f or ΔEs.

KW - Disk microelectrode

KW - Square wave voltammetry

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SN - 1572-6657

VL - 619-620

SP - 206

EP - 208

JO - Journal of Electroanalytical Chemistry

JF - Journal of Electroanalytical Chemistry

IS - 1-2

ER -

Evaluation of a naive model for square wave voltammetry at a microdisk electrode

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Keywords

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