A Mathematical Model of Ultra-Thin Catalyst Layer in PEFC

Qian Pu Wang; Michael Eikerling; Da Tong Song; Zhong Sheng Liu

doi:10.4028/www.scientific.net/MSF.539-543.1397

Paper Titles

Synthesis and Sintering Behavior of Nano Crystalline Gd-Doped Ceria
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Development of Zirconium Based Non-Platinum Cathode for Polymer Electrolyte Fuel Cell
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Plasma Spray Processing of Solid Oxide Fuel Cells
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A Study on Co and Cu Oxides as Sintering Aids for Sm_0.2Ce_0.8O_1.9 Electrolyte
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A Mathematical Model of Ultra-Thin Catalyst Layer in PEFC
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Development and Demonstration of Membrane Reformer System for Highly-Efficient Hydrogen Production from Natural Gas
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First-Principle Molecular-Dynamics Study of Hydrogen and Aluminium Nanowires in Carbon Nanotubes
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Sintering of Mixed-Conducting Composites for Hydrogen Membranes from Nanoscale Co-Synthesized Powders
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Mechanical Strength and Interface Adhesion of a Solid Oxide Fuel Cell with Doped Ceria Electrolyte
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HomeMaterials Science ForumMaterials Science Forum Vols. 539-543A Mathematical Model of Ultra-Thin Catalyst Layer...

A Mathematical Model of Ultra-Thin Catalyst Layer in PEFC

Abstract:

A mathematical model for an ultra-thin catalyst layer in PEFCs is introduced. It utilizes Nernst-Planck and Poisson equations. Calculated polarization curves are shown to compare favourably with published experimental data for ultra-thin catalyst layers. Aspects of current conversion, reactant, current distribution, and catalyst utilization are explored. The effect of catalyst layers thickness on the Pt utilization is discussed. This study gives us a better understanding of transport and reaction at the mesoscopic scale and it furnishes the directions for optimization of this type of catalyst layer.