Home // INFOCOMP 2017, The Seventh International Conference on Advanced Communications and Computation // View article

Electrochemical Impedance Spectroscopy of Alkaline Methanol Oxidation

Authors:
Tanja Clees
Igor Nikitin
Lialia Nikitina
Daniela Steffes-lai
Sabine Pott
Ulrike Krewer
Theresa Windorfer

Keywords: Modeling of complex systems; Non-linear optimization; Parameter identification; Applications; Electrochemistry.

Abstract:
Direct alkaline methanol fuel cell is a perspective technology for economic energy sources. The development of this technology requires advanced methods for the analysis of underlying chemical reactions. Electrochemical impedance spectroscopy is a popular method for analysis of dynamical processes in cells by a direct measurement of linear response function of the system to harmonic perturbations. In this paper, we propose a parameter identification procedure for electrochemical impedance spectroscopy of alkaline methanol oxidation. The procedure is based on decomposition of the linear response function in terms of poles and zeros and cross-fit of the obtained decomposition to the kinetic model using the methods of non-linear programming. The necessary conditions of the applicability of the proposed procedure have been derived and the stability of the method has been confirmed by the numerical experiments.

Pages: 46 to 51

Copyright: Copyright (c) IARIA, 2017

Publication date: June 25, 2017

Published in: conference

ISSN: 2308-3484

ISBN: 978-1-61208-567-8

Location: Venice, Italy

Dates: from June 25, 2017 to June 29, 2017