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Zeitschrift für Physikalische Chemie

International journal of research in physical chemistry and chemical physics

Editor-in-Chief: Rademann, Klaus

IMPACT FACTOR 2018: 0.975
5-year IMPACT FACTOR: 1.021

CiteScore 2018: 1.20

SCImago Journal Rank (SJR) 2018: 0.327
Source Normalized Impact per Paper (SNIP) 2018: 0.391

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Volume 214, Issue 7


Impedance of the Hydrogen Polymer Fuel Cell Electrode. Theory and Experiments

S. Kjelstrup / P: Pugazhendi / D. Bedeaux
Published Online: 2009-09-25 | DOI: https://doi.org/10.1524/zpch.2000.214.7.895

We derive the impedance for the hydrogen electrode in the polymer membrane fuel cell from irreversible thermodynamics. The results predict a surface contribution to the cell impedance that can give two semi-circles in the Nyquist diagram. The equivalent circuit of the impedance is shown. The high-frequency contribution is connected to the oscillation of dipoles consisting of free charges in the surface, while the low-frequency contribution is connected to the electrochemical reaction. This can be explained by a slowly relaxing proton conducting polymer network at the reaction site.

About the article

Published Online: 2009-09-25

Published in Print: 2000-07-01

Citation Information: Zeitschrift für Physikalische Chemie, Volume 214, Issue 7, Pages 895–, ISSN (Online) 2196-7156, ISSN (Print) 0942-9352, DOI: https://doi.org/10.1524/zpch.2000.214.7.895.

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