Potential step chronoamperometry at hemispherical mercury electrodes: The formation of thallium amalgams and the measurement of the diffusion coefficient of thallium in mercury

Limon-Petersen, Juan G.; Rees, Neil V.; Streeter, Ian; Molina, Á.; Compton, Richard G.

doi:10.1016/j.jelechem.2008.07.003

Cited by 19 publications

(32 citation statements)

References 26 publications

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“…Mercury hemispheres were deposited chronoamperometrically on Pt disc electrodes with r 0 = 25 mm from a degassed solution of Hg 2 (NO 3 ) 2 (10 mM) with 0.1 M KNO 3 as supporting electrolyte (acidified with 0.5 % of HNO 3 ), as described in literature [8,9]. Nitrogen atmosphere was maintained during the deposition.…”

Section: Working Electrodementioning

confidence: 99%

Additive Differential Pulse Voltammetry for the Study of Slow Charge Transfer Processes at Spherical Electrodes

et al. 2010

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The application of additive differential pulse voltammetry to the study of the kinetics of a charge transfer process is studied. A simple analytical solution is presented, valid for spherical electrodes of any size and for electrode processes of any reversibility. From this solution, valuable diagnostic criteria for the elucidation of the electrochemical reversibility are established based on the variation of the ADPV signal with the duration of the potential pulses, the electrode radius and the pulse height. Working curves for the determination of the kinetic parameters are also given. The value of the ADPV technique is experimentally demonstrated by studying the kinetics of the reduction of 3-nitrophenolate À and europium 3 + at mercury hemispherical microelectrodes.

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Section: Working Electrodementioning

confidence: 99%

Additive Differential Pulse Voltammetry for the Study of Slow Charge Transfer Processes at Spherical Electrodes

et al. 2010

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“…A 25 mm mercury hemisphere working electrode was prepared according to the literature procedure. [12,13] All electrochemical experiments were carried out using a computer-controlled mAutolab potentiostat (Eco-Chemie, Netherlands). All solutions were thoroughly degassed before each experiment by bubbling N 2 through the solution.…”

Section: Methodsmentioning

confidence: 99%

New Chemical Insights Using Weakly Supported Voltammetry: Ion Pairing in the EC₂ Reduction of 2,6‐Diphenylpyrylium in Acetonitrile

et al. 2011

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Pairing effect: Varying the concentration of support electrolyte in the electrochemical EC(2) reduction of 2,6-diphenylpyrylium reveals the presence of ion pairing between the electroactive species and BF(4)(-). Experiment and theory are shown to be in good agreement only if ion pairing is included in the simulations. This previously unanticipated effect is only observable if voltammetry is performed under conditions of weak support.

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“…Mercury was electrodeposited by holding the potential at −0.245 V on Pt disc electrodes with r 0 = 25 m from a 10mM solution of Hg 2 (NO 3 ) 2 with 0.1 M KNO 3 as supporting electrolyte (acidified with 0.5% of HNO 3 ), as described in literature [16,17].…”

Section: Working Electrodementioning

confidence: 99%

Application of double pulse theory for hemispherical microelectrodes to the experimental study of slow charge transfer processes

Laborda

Rogers

Martı́nez-Ortiz

et al. 2010

Electrochimica Acta

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Potential step chronoamperometry at hemispherical mercury electrodes: The formation of thallium amalgams and the measurement of the diffusion coefficient of thallium in mercury

Cited by 19 publications

References 26 publications

Additive Differential Pulse Voltammetry for the Study of Slow Charge Transfer Processes at Spherical Electrodes

Additive Differential Pulse Voltammetry for the Study of Slow Charge Transfer Processes at Spherical Electrodes

New Chemical Insights Using Weakly Supported Voltammetry: Ion Pairing in the EC₂ Reduction of 2,6‐Diphenylpyrylium in Acetonitrile

Application of double pulse theory for hemispherical microelectrodes to the experimental study of slow charge transfer processes

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Potential step chronoamperometry at hemispherical mercury electrodes: The formation of thallium amalgams and the measurement of the diffusion coefficient of thallium in mercury

Cited by 19 publications

References 26 publications

Additive Differential Pulse Voltammetry for the Study of Slow Charge Transfer Processes at Spherical Electrodes

Additive Differential Pulse Voltammetry for the Study of Slow Charge Transfer Processes at Spherical Electrodes

New Chemical Insights Using Weakly Supported Voltammetry: Ion Pairing in the EC2 Reduction of 2,6‐Diphenylpyrylium in Acetonitrile

Application of double pulse theory for hemispherical microelectrodes to the experimental study of slow charge transfer processes

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Product

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New Chemical Insights Using Weakly Supported Voltammetry: Ion Pairing in the EC₂ Reduction of 2,6‐Diphenylpyrylium in Acetonitrile