Spectroelectrochemistry for a coupled chemical reaction in the channel cell - Part I. Theoretical simulation of an EC reaction

The in situ spectroelectrochemical steady state convective-diffusion equati on of the EC reaction in the flow cell was solved by the implicit differenc e method. The normalized absorbance of the intermediate R and the final pro duct P were calculated. Several factors affecting the spectroelectrochemica l behavior were analyzed, which were represented by the normalized paramete r w and normalized rate constant K-1 respectively. The relationship between the normalized absorbence of intermediate R and w was discussed and a form ula for calculating the rate constant of the following reaction was derived . The suitable range of application of the formula was discussed as well. ( C) 1999 Elsevier Science S.A. All rights reserved.