Parameter Identification in Cyclic Voltammetry of Alkaline Methanol Oxidation

Tanja Clees, Igor Nikitin, Lialia Nikitina, Sabine Pott, Ulrike Krewer, Theresa Haisch

2018

Abstract

Alkaline methanol oxidation is an electrochemical process, perspective for the design of efficient high energy density fuel cells. The process involves a large number of elementary reactions, forming a complex reaction graph, and it is described by a system of non-linear differential equations of high order. The purpose of parameter identification is a reconstruction of reaction constants in this model on the basis of available experimental data. Cyclic voltammetry, a measurement of dynamical current-voltage characteristic of the cell, is especially suitable for analysis of electrochemical kinetics. In this paper we present several approaches for parameter identification in cyclic voltammetry of alkaline methanol oxidation. With the aid of global optimization methods and interactive parameter study we find four islands of solutions in parameter space, corresponding to different chemical mechanisms of the process. The main features of solutions are discussed and the reconstructed reaction constants are presented.

Paper Citation

in Harvard Style

Clees T., Nikitin I., Nikitina L., Pott S., Krewer U. and Haisch T. (2018). Parameter Identification in Cyclic Voltammetry of Alkaline Methanol Oxidation.In Proceedings of 8th International Conference on Simulation and Modeling Methodologies, Technologies and Applications - Volume 1: SIMULTECH, ISBN 978-989-758-323-0, pages 279-288. DOI: 10.5220/0006832002790288

in Bibtex Style

@conference{simultech18,
author={Tanja Clees and Igor Nikitin and Lialia Nikitina and Sabine Pott and Ulrike Krewer and Theresa Haisch},
title={Parameter Identification in Cyclic Voltammetry of Alkaline Methanol Oxidation},
booktitle={Proceedings of 8th International Conference on Simulation and Modeling Methodologies, Technologies and Applications - Volume 1: SIMULTECH,},
year={2018},
pages={279-288},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006832002790288},
isbn={978-989-758-323-0},
}

in EndNote Style

TY - CONF

JO - Proceedings of 8th International Conference on Simulation and Modeling Methodologies, Technologies and Applications - Volume 1: SIMULTECH,
TI - Parameter Identification in Cyclic Voltammetry of Alkaline Methanol Oxidation
SN - 978-989-758-323-0
AU - Clees T.
AU - Nikitin I.
AU - Nikitina L.
AU - Pott S.
AU - Krewer U.
AU - Haisch T.
PY - 2018
SP - 279
EP - 288
DO - 10.5220/0006832002790288