New method for the investigation of CE system via convolutive voltammetry combined with digital simulation

El-Hallag, Ibrahim S.; Ghoneim, Mohammed M.; Hammam, Essam

doi:10.1016/s0003-2670(00)00819-9

Cited by 26 publications

(30 citation statements)

References 7 publications

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“…The simulation procedure was carried out using finite differences techniques. 42 Algorithms for the simulation program were coded and implemented into the condesim software package supplied by EG & G. A direct test of the determined electrochemical parameters was performed by generating the simulated cyclic voltammogram of cycteamine using the average values of electrochemical parameters extracted experimentally and comparing it with the voltammogram recorded experimentally.…”

Section: Generation Of Theoretical Voltammogramsmentioning

confidence: 99%

Electrochemical Investigation of Cysteamine at Carbon Fiber Microdisk Electrode

El-Hallag

Al‐Youbi

Obaid

et al. 2011

J. Chil. Chem. Soc.

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The electrooxidation of cysteamine compound was carried out using convolutive cyclic voltammetry, linear sweep voltammetry and chronoamperomtry techniques at a carbon fiber microdisk electrode in 0. 1 M perchloric acid. The electrooxidation potential (E 0'' ) of cysteamine occurs at + 0.921 V. The mechanistic pathway of electrooxidation process at carbon fiber microelectrode is loss of 1 electron per molecule. The electrode process is controlled mainly by diffusion. The chemical and electrochemical parameters of the investigated system were determined experimentally and verified theoretically via digital simulation method.

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Section: Generation Of Theoretical Voltammogramsmentioning

confidence: 99%

Electrochemical Investigation of Cysteamine at Carbon Fiber Microdisk Electrode

El-Hallag

Al‐Youbi

Obaid

et al. 2011

J. Chil. Chem. Soc.

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“…Also, the values of the diffusion coefficient were calculated from deduced convoluted current (I limd ) via the following relationship: 17,19 I limd =…”

Section: Deconvolution Transformsmentioning

confidence: 99%

“…Convolution-deconvolution transforms: In the case of moderate fast electron transfer, the diffusion coefficients (D 1 & D 2 ) of the dye sensitized solar cells DBPI were determined from the following equation: 17,19 …”

Section: Deconvolution Transformsmentioning

confidence: 99%

Convolutive Cyclic Voltammetry Investigation of Dicarboximide Laser Dye at a Platinum Electrode in 1,2-Dichloroethane

Albishri¹,

El‐Mossalamy²,

El-Hallag³

et al. 2011

Journal of the Korean Chemical Society

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ABSTRACT. The electrochemical investigation of N,N-bis (2,5-di-tert-butylphenyl)-3,4,9,10 perylenebis (dicarboximide) laser dye have been carried out using cyclic voltammetry and convolution -deconvolution voltammetry combined with digital simulation technique at a platinum electrode in 0.1 mol/L tetrabutyl ammonium perchlorate (TBAP) in solvent 1,2 dichloroethane (CH2Cl-CH2Cl). The investigated dye was reduced via consumption of two sequential electrons to form radical anion and dianion (EE mechanism). In switching the potential to positive scan, the compound was oxidized by loss of two electrons, which were followed by a fast aggregation process (EC1EC2 mechanism). The electrode reaction pathway and the chemical and electrochemical parameters of the investigated compound were determined using cyclic voltammetry and convolutive voltammetry. The extracted electrochemical parameters were verified and confirmed via digital simulation method.

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“…[24][25][26][27] The shape of the I 1 -E curve exhibit important feature for the identification of the nature of the electrode process. For a simple rapid charge transfer, the shape of The convolution of the current data with an inverse square root of time, I 1 is defined as: [24][25][26][27][28][29][30] ( 2) where I 1 is the convoluted current at the total elapsed time and i(u) is the experimental current at time u.…”

Section: Convolutive Voltammetrymentioning

confidence: 99%

Electrochemical Studies and Extraction of Chemical and Electrochemical Parameters of Zn(ii) Ion at Mercury Electrode via Convolutive Voltammetry and Digital Simulation Methods

El-Hallag

2010

J. Chil. Chem. Soc.

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The electrochemical behaviour of Zn(II) ion as example of C rev E irr system was studied at hanging mercury drop electrode in aqueous solution in the presence of 1M KCl using cyclic voltammetry and convolutive voltammetry methods. Digital simulation technique was used to test the chemical and electrochemical parameters of Zn(II) ion estimated experimentally as well as verifying the proposed electrode mechanism.

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New method for the investigation of CE system via convolutive voltammetry combined with digital simulation

Cited by 26 publications

References 7 publications

Electrochemical Investigation of Cysteamine at Carbon Fiber Microdisk Electrode

Electrochemical Investigation of Cysteamine at Carbon Fiber Microdisk Electrode

Convolutive Cyclic Voltammetry Investigation of Dicarboximide Laser Dye at a Platinum Electrode in 1,2-Dichloroethane

Electrochemical Studies and Extraction of Chemical and Electrochemical Parameters of Zn(ii) Ion at Mercury Electrode via Convolutive Voltammetry and Digital Simulation Methods

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