Acquisition and analysis of cyclic voltammetric data

Whitson, Paul E.; VandenBorn, H. W.; Evans, Dennis H.

doi:10.1021/ac60330a016

Cited by 121 publications

(69 citation statements)

References 26 publications

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“…[18] In our case, the backward scan of the convoluted semi-integral current at low scan rate (0.02-0.05 V/s) does not return to its initial value at the end of scan and, therefore, reveals the presence of a chemical step coupled with charge transfer. [32] Bulk electrolysis confirms the consumption of two electrons per molecule to produce a couple of new peaks (at -0.90 and -1.74 V). On the basis of this preliminary study, it is apparent that the redox chemistry of this family of compounds, completely unexplored to date, promises to reveal several interesting new features, and a more detailed investigation is planned.…”

Section: Electrochemical Measurementsmentioning

confidence: 80%

Methylsulfanyl‐Stabilized Rotamers of Cobalt Bis(dicarbollide)

et al. 2017

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Section: Electrochemical Measurementsmentioning

confidence: 80%

Methylsulfanyl‐Stabilized Rotamers of Cobalt Bis(dicarbollide)

et al. 2017

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“…4 plots the values of i pa,eq(2) /i pa and i pa,eq(5) /i pa . Here, i pa,eq (2) and i pa,eq (5) are the estimated values using eqs.…”

Section: (5)mentioning

confidence: 99%

“…It is interesting that while the CV comprises forward and reversed potential scans, there are only a few studies on the reverse currents, except for those examining the reversibility of the electrochemical reaction of interest [5]. One of the possible reasons for this is the effect of the switching potential (E λ ) on the reverse current.…”

Section: Introductionmentioning

confidence: 99%

A New Accurate Equation for Estimating the Baseline for the Reversal Peak of a Cyclic Voltammogram

Oh¹,

Chang²

2016

Journal of Electrochemical Science and Technology

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Here we propose a new equation by which we can estimate the baseline for measuring the peak current of the reverse curve in a cyclic voltammogram. A similar equation already exists, but it is a linear algebraic equation that over-simplifies the voltammetric curve and may cause unpredictable errors when calculating the baseline. In our study, we find a quadratic algebraic equation that acceptably reflects the complexity included in a voltammetric curve. The equation is obtained from a laborious numerical analysis of cyclic voltammetry simulations using the finite element method, and not from the closed form of the mathematical equation. This equation is utilized to provide a virtual baseline current for the reverse peak current. We compare the results obtained using the old linear and new quadratic equations with the theoretical values in terms of errors to ascertain the degree to which accuracy is improved by the new equation. Finally, the equations are applied to practical cyclic voltammograms of ferricyanide in order to confirm the improved accuracy.

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“…The voltammetric cell has been described elsewhere (11) as has the digital data acquisition system and procedures for analysis of cyclic voltammetric data (12). A silver reference electrode (SRE) comprising a silver wire in contact with 0.10M tetra-n-butylammonium perchlorate and 0.010M silver nitrate in DMSO was used for the DMSO studies and an aqueous saturated calomel electrode (SCE) was used in AN.…”

Section: Apparatusmentioning

confidence: 99%