3 results match your criteria: "Institute of Energy and Climate Research D-52425 Jülich Germany A.Kulikovsky@fz-juelich.de.[Affiliation]"
RSC Adv
February 2021
Theory and Computation of Energy Materials (IEK-13), Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research D-52425 Jülich Germany
[This corrects the article DOI: 10.1039/C9RA07794D.].
View Article and Find Full Text PDFPhys Chem Chem Phys
September 2020
Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research, IEK-14: Electrochemical Process Engineering, D-52425 Jülich, Germany. and Lomonosov Moscow State University, Research Computing Center, 119991 Moscow, Russia.
A simple numerical method for the calculation of the distribution of relaxation times (DRT) for PEM fuel cell impedance is developed. The method combines the Tikhonov regularization technique and projected gradient iterations. The method is illustrated by calculating DRT for the synthetic impedance of two parallel RC-circuits and for Warburg finite-length impedance.
View Article and Find Full Text PDFRSC Adv
November 2019
Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research, IEK-14: Electrochemical Process Engineering D-52425 Jülich Germany
Unexpected over-linear transport loss in low-Pt PEM fuel cells has been a subject of numerous studies and discussions in literature. Most of the authors agree that these losses are due to oxygen transport in the Nafion film covering Pt/C agglomerates in the cathode catalyst layer (CCL). We develop a model for PEM fuel cell impedance, which takes into account oxygen transport through the film.
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