Clees, TanjaTanjaCleesNikitin, IgorIgorNikitinNikitina, LialiaLialiaNikitinaSteffes-lai, DanielaDanielaSteffes-laiPott, SabineSabinePottKrewer, UlrikeUlrikeKrewerWindorfer, TheresaTheresaWindorfer2022-03-132022-03-132017https://publica.fraunhofer.de/handle/publica/399775Direct 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.enmodeling of complex systemnon-linear optimizationparameter identificationapplicationelectrochemistryconference paper