Application of Butler–Volmer equations in the modelling of activation polarization for PEM fuel cells

Mann, R. F.; Amphlett, J. C.; Peppley, Brant A.; Thurgood, C.P.

doi:10.1016/j.jpowsour.2006.05.026

Cited by 101 publications

(33 citation statements)

References 16 publications

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“…The application of the Butler-Volmer equation assumes one rate determining step (rds) for the modelled reaction mechanism [27]. For the sake of modelling simplicity, α is therefore assumed to be constant over the whole current range [28,29,30].…”

Section: Model Descriptionmentioning

confidence: 99%

Model-supported characterization of a PEM water electrolysis cell for the effect of compression

Frensch

Olesen

Araya

et al. 2018

Electrochimica Acta

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This paper investigates the influence of the cell compression of a PEM water electrolysis cell. A small single cell is therefore electrochemically analyzed by means of polarization behavior and impedance spectroscopy throughout a range of currents (0.01 A cm −2 to 2.0 A cm −2 ) at two temperatures (60• C and 80• C) and eight compressions (0.77 MPa to 3.45 MPa). Additionally, a computational model is utilized to support the analysis. The main findings are that cell compression has a positive effect on overall cell performance due to decreased contact resistances, but is subject to optimization. In this case, no signs of severe mass transport problems due to crushed transport layers are visible in either polarization curves or impedance plots, even at high currents. However, a Tafel plot analysis revealed more than one slope throughout the current range. The change in the Tafel slope is therefore discussed and connected to the electrochemical reaction or an ohmic contribution from a non-electrode component.

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Section: Model Descriptionmentioning

confidence: 99%

Model-supported characterization of a PEM water electrolysis cell for the effect of compression

Frensch

Olesen

Araya

et al. 2018

Electrochimica Acta

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“…The values for the solubility and diffusion coefficients are chosen among a large base of experimentally given laws [20,26,27]. Those laws are always temperature dependent and sometimes depend also on the water uptake of the membrane.…”

Section: Model Descriptionmentioning

confidence: 99%

Membrane degradation in PEM water electrolyzer: Numerical modeling and experimental evidence of the influence of temperature and current density

Chandesris

Médeau

Guillet

et al. 2015

International Journal of Hydrogen Energy

247

111

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“…Therefore, the oxygen molecules can be distributed in the Nafion phase more easily. From previous studies of Henry's law coefficient of oxygen molecule for hydrated Nafion membrane, we note that there is a large variation in the reported values of Henry's Law coefficient (7), which might be due to the various kinetic factors and processing history for sample preparation. If we assume that the volume fraction between these experiments is constant for a given water content, we found that our simulation results are consistent with the experimental Henry's law coefficient, indicating that oxygen molecules reside in the Nafion phase, but can also be found on the Nafion water interface.…”

Section: Resultsmentioning

confidence: 87%

Multi-Scale First-Principles Modeling of Three-Phase System of Polymer Electrolyte Membrane Fuel Cell

et al. 2013

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The three-phase system consisting of Nafion, graphite and platinum in the presence of water is studied using molecule dynamics simulation. The force fields describing the molecular interaction between the components in the system are developed to reproduce the energies calculated from density functional theory modeling. The configuration of such complicated three-phase system is predicted through MD simulations. The nanophasesegregation and transport properties are investigated from the equilibrium state. The coverage of the electrolyte on the platinum surface and the dissolution of oxygen are analyzed.

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Application of Butler–Volmer equations in the modelling of activation polarization for PEM fuel cells

Cited by 101 publications

References 16 publications

Model-supported characterization of a PEM water electrolysis cell for the effect of compression

Model-supported characterization of a PEM water electrolysis cell for the effect of compression

Membrane degradation in PEM water electrolyzer: Numerical modeling and experimental evidence of the influence of temperature and current density

Multi-Scale First-Principles Modeling of Three-Phase System of Polymer Electrolyte Membrane Fuel Cell

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