The Low Current Electrochemical Mechanisms of the Fuel Cell Cathode Catalyst Layer Through an Impedance Study
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چکیده
منابع مشابه
A Generic Electrical Circuit for Performance Analysis of the Fuel Cell Cathode Catalyst Layer through Electrochemical Impedance Spectroscopy
In this study, a generic electrical circuit is presented to characterise the frequency response of the Polymer Electrolyte Fuel Cell (PEFC) Cathode Catalyst Layer (CCL) at different current densities. The new electrical circuit is derived from fundamental electrochemical and diffusion theory. It consists of a transmission line in combination with distributed Warburg elements. The validation of ...
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The produced liquid water in cathode catalyst layer (CCL) has significant effect on the operation of proton exchange membrane fuel cell (PEMFC). To investigate this effect, the transport of oxygen in CCL in the presence of immiscible liquid water is studied applying a two-dimensional pore scale model. The CCL was reconstructed as an agglomerated system. To explore the wettability effects, diffe...
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15 صفحه اولAn Effective Computational Approach to the Parametric Study of the Cathode Catalyst Layer of PEM Fuel Cells
We propose an integrated modeling, prediction, and analysis framework for the parametric study of the cathode catalyst layer (CCL) of PEM fuel cells. A parametric study is performed on a macro-homogeneous film model of the CCL. An artificial neural network (ANN) is then used in order to model and predict the effect of various structural parameters on the activation overpotential of the CCL. The...
متن کاملthe impact of wettability on effective properties of cathode catalyst layer in a proton exchange membrane fuel cell
the produced liquid water in cathode catalyst layer (ccl) has significant effect on the operation of proton exchange membrane fuel cell (pemfc). to investigate this effect, the transport of oxygen in ccl in the presence of immiscible liquid water is studied applying a two-dimensional pore scale model. the ccl was reconstructed as an agglomerated system. to explore the wettability effects, diffe...
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ژورنال
عنوان ژورنال: Journal of The Electrochemical Society
سال: 2010
ISSN: 0013-4651
DOI: 10.1149/1.3280267