Analytical expression of non steady-state concentration profiles at planar electrode for the CE mechanism | Zendy

Vincent Michael Raj Margret PonRani | Zendy; Lakshmanan Rajendren | Zendy

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Analytical expression of non steady-state concentration profiles at planar electrode for the CE mechanism

Author(s) -

Vincent Michael Raj Margret PonRani,

Lakshmanan Rajendren

Publication year - 2010

Publication title -

natural science

Language(s) - English

Resource type - Journals

eISSN - 2150-4105

pISSN - 2150-4091

DOI - 10.4236/ns.2010.211160

Subject(s) - steady state (chemistry) , microelectrode , planar , thermodynamics , work (physics) , homogeneous , chemistry , position (finance) , perturbation (astronomy) , kinetic energy , constant (computer programming) , limiting , boundary value problem , mathematical analysis , electrode , mathematics , physics , classical mechanics , computer science , mechanical engineering , computer graphics (images) , finance , quantum mechanics , engineering , economics , programming language

The analytical solutions of the non-steady-state concentrations of species at a planar microelectrode are presented. These simple new approximate expressions of concentrations are valid for all values of time and possible values of rate constants. Analytical equations are given to describe the current when the homogeneous equilibrium position lies heavily in favour of the electroinactive species. Working surfaces are presented for the variation of limiting current with a homogeneous kinetic parameter and equilibrium constant. Moreover, in this work we employ the Homotopy perturbation method to solve the boundary value problem

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