Archivio Istituzionale della RicercaA 3D multi-physics, multi-phase, multi-component and non iso-thermal model is developed to analyze the effects of catalyst structures on the performance of a gas diffusion electrode (GDE). The model includes Stokes-Brinckman, Maxwell-Stefan, Flory-Huggins and modified Butler-Volmer equations for simulating the performance of a GDE, solved by Comsol® Multiphysics v4.4 platform. The model was validated against experimental data, showing congruent and convergent response for different catalytic layers, confirming the accuracy of the model and the equations applied. The use of a 3D model considering porous materials can be used for evaluating intrinsic parameters of new novel electrocatalysts.
3D multi-physic modeling and validation of a gas diffusion electrode for analyzing transport and kinetic phenomena of noble and non-noble based catalysts for PEMFC / Vasile, NICOLO' SANTI; Doherty, R.; MONTEVERDE VIDELA, ALESSANDRO HUGO; Specchia, Stefania. - ELETTRONICO. - (2015). (Intervento presentato al convegno International Conference on Electrochemical Energy Science and Technology (EEST2015) tenutosi a Vancouver (Canada) nel 16-22/08/2015).
3D multi-physic modeling and validation of a gas diffusion electrode for analyzing transport and kinetic phenomena of noble and non-noble based catalysts for PEMFC
VASILE, NICOLO' SANTI;MONTEVERDE VIDELA, ALESSANDRO HUGO;SPECCHIA, STEFANIA
2015
Abstract
A 3D multi-physics, multi-phase, multi-component and non iso-thermal model is developed to analyze the effects of catalyst structures on the performance of a gas diffusion electrode (GDE). The model includes Stokes-Brinckman, Maxwell-Stefan, Flory-Huggins and modified Butler-Volmer equations for simulating the performance of a GDE, solved by Comsol® Multiphysics v4.4 platform. The model was validated against experimental data, showing congruent and convergent response for different catalytic layers, confirming the accuracy of the model and the equations applied. The use of a 3D model considering porous materials can be used for evaluating intrinsic parameters of new novel electrocatalysts.
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https://hdl.handle.net/11583/2635831
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