Premium
Heterogeneous ECE Processes at Channel Electrodes: Analytical Solution for all Reaction Rate Constants and Different Diffusion Coefficients
Author(s) -
Zhang Jinsuo,
Li Ning
Publication year - 2004
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.200302856
Subject(s) - laminar flow , diffusion , reaction rate constant , electron , electrode , reaction rate , chemistry , thermodynamics , diffusion layer , analytical chemistry (journal) , turbulence , flow (mathematics) , channel (broadcasting) , parametric statistics , constant (computer programming) , mechanics , kinetics , physics , chromatography , mathematics , classical mechanics , biochemistry , quantum mechanics , electrical engineering , programming language , engineering , catalysis , statistics , computer science
An analytical solution is developed for heterogeneous ECE processes occurring at channel electrode surface for both laminar and turbulent flow. The solution explicitly links the behavior of ECE processes and the parameters. A simple expression of the effective number of electrons transferred, covering all the reaction rate constants and different diffusion coefficients of the reactant A and the intermediate product B, is obtained. Excellent agreement with previous numerical and analytical results is shown . Parametric studies illustrate the effects of diffusion coefficients, hydrodynamic factors and reaction rate constants on the effective number of electrons transferred and the currents.