Electrochemical reactions where the variation of supporting electrolyte concentration is mechanistically revealing: ECE-DISP1 processes in which the chemical step is an isomerisation

Barnes, Edward O.; Belding, Stephen R.; Compton, Richard G.

doi:10.1016/j.jelechem.2011.06.029

Cited by 7 publications

(2 citation statements)

References 32 publications

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“…This is, for instance, the case for the later discussed geometry of a spherical electrode in a Cartesian coordinate system. An alternative approach to electrochemical simulations is given by the method of finite differences, which has been used in a wide range of applications during recent years [9][10][11][12][13][14]. In comparison to random walks, it is a relatively fast method for the investigation of electrochemical systems.…”

Section: Introductionmentioning

confidence: 99%

Equality of diffusion-limited chronoamperometric currents to equal area spherical and cubic nanoparticles on a supporting electrode surface

Kätelhön

Barnes

Krause

et al. 2014

Chemical Physics Letters

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We computationally investigate the chronoamperometric current response of spherical and cubic particles on a supporting insulating surface. By using the method of finite differences and random walk simulations, we can show that both systems exhibit identical responses on all time scales if their exposed surface areas are equal. This result enables a simple and computationally efficient method to treat certain spherical geometries in random walk based noise investigations.

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Section: Introductionmentioning

confidence: 99%

Equality of diffusion-limited chronoamperometric currents to equal area spherical and cubic nanoparticles on a supporting electrode surface

Kätelhön

Barnes

Krause

et al. 2014

Chemical Physics Letters

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“…Compton et al 23 showed that the kinetics of electrochemical reactions might be affected by the concentration of the supporting media. The electric field on the electrode surface decreased with the decrease of the supporting medium concentration, which led to a change in the peak current and the ΔEp 25 . In another study 24 , a laccase-based microscale sensor was designed to determine phenol in weakly supported media.…”

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confidence: 99%

Electrochemical analysis of anionic analytes in weakly supported media using electron transfer promotion effect: a case study on nitrite

Khoshroo

Fattahi

2020

Sci Rep

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In this study, a simple technique was developed for the electrochemical detection of anionic analytes in weakly supported media. This was conducted by the use of electrochemical paper-based analytical devices (ePADs). A sensing platform was modified with nereistoxin and used to determine nitrite as a case study. The electrochemical response was improved due to the accelerated electron transfer between the sensing platform and the nitrite through the electrostatic interaction of the amino group of nereistoxin and the nitrite. The electrocatalytic current of the nitrite in the presence of nereistoxin was enhanced in the weakly supported media. By using nereistoxin as a signal enhancer, 97% of the electrochemical signal was obtained at the low ionic strength of the electrolyte, while less than 35% of this signal was obtained in the absence of nereistoxin. The limit of detection was as low as 20 nM using an ePAD. Generally, the proposed ePAD serves as a promising, efficient and low-cost device for sensing applications in weakly supported media.

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New Chemical Insights Using Weakly Supported Voltammetry: The Reductive Cleavage of ArylBr Bonds is Reversible

2012

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Cyclic voltammetry carried out at a wide range of supporting electrolyte concentrations and compositions can elucidate additional kinetic and mechanistic details of the electrochemical reduction of aryl halides. The cleavage of the C-Br bond is reversible, driven by H abstraction and the second electron transfer. This is a new chemical insight, as the cleavage of such bonds has usually been regarded as irreversible.

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Electrochemical reactions where the variation of supporting electrolyte concentration is mechanistically revealing: ECE-DISP1 processes in which the chemical step is an isomerisation

Cited by 7 publications

References 32 publications

Equality of diffusion-limited chronoamperometric currents to equal area spherical and cubic nanoparticles on a supporting electrode surface

Equality of diffusion-limited chronoamperometric currents to equal area spherical and cubic nanoparticles on a supporting electrode surface

Electrochemical analysis of anionic analytes in weakly supported media using electron transfer promotion effect: a case study on nitrite

New Chemical Insights Using Weakly Supported Voltammetry: The Reductive Cleavage of ArylBr Bonds is Reversible

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