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Ohmic drop effects in square-wave voltammetry (CROSBI ID 92990)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Mirčeski, Valenti ; Lovrić, Milivoj Ohmic drop effects in square-wave voltammetry Journal of Electroanalitical Chemistry, 497 (2001), 114-124-x

Podaci o odgovornosti

Mirčeski, Valenti ; Lovrić, Milivoj

engleski

Ohmic drop effects in square-wave voltammetry

The ohmic drop effects in square-wave voltammetry (SWV) are studied theoretically. Three different electrode mechanisms are considered: (i) simple redox reaction of a dissolved redox couple, (ii) redox reaction with adsorption of reactant and (iii) surface redox reaction of a strongly immobilized redox couple. The relationships between the properties of the SWV response and the resistance parameters are investigated throughtly. An attempt is made to establish criteria for distinguising the kinetic from the drop phenomena. The influence of the ohmic drop on the quasi-reversible maximum in the case of adsorption-complicated redox reaction (ii) and (iii) is analysed. The error that can be involved in the estimation of the standard rate constant the quasi-reversible maximum in the presence of ohmic drop is evaluated in the case of the surface redox reaction (iii).

adsorption; ohmic drop effect; square-wave voltammetry

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Podaci o izdanju

497

2001.

114-124-x

objavljeno

Povezanost rada

Kemija