|
NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR) >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Chemistry -Section A (IJC-A) >
IJC-A Vol.48A [2009] >
IJC-A Vol.48A(02) [February 2009] >
| Title: | Numerical modelling and simulation of Koutecky-Levich equation for NADH electrocatalytic oxidation at graphite electrodes modified with a new polymeric phenothiazine |
| Authors: | Unguresan, Mihaela Ligia
Gligor, Delia Maria |
| Keywords: | Electrochemistry
Modified electrodes
Polymers
Electrocatalytic oxidations
Oxidations
Koutecky-Levich approach
Polyphenothiazine |
| Issue Date: | Feb-2009 |
| Publisher: | CSIR |
| Abstract: | A mathematical model has been developed for the electrocatalytic NADH oxidation process taking place at graphite electrodes modified with a polymer of phenothiazine formaldehyde. The electrocatalytic rate constants (kobs) have been obtained from rotating disk electrode experiments, at various concentrations of NADH and pH values of the supporting electrolyte. Using the method of linear regression, the kinetic parameters kobs[NADH]ââ, kââ and KM have been determined. Based on the results obtained, the numerical simulation of these parameters corresponding to electrocatalytic oxidation of NADH, using the modified graphite electrode, has been obtained.
The experimental data overlap almost perfectly with the mathematical and numerical simulated data, proving the validity of the model. |
| Page(s): | 206-210 |
| ISSN: | 0376-4710 |
| Source: | IJC-A Vol.48A(02) [February 2009]
|
|
