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Lattice Boltzmann Simulation of Transport Phenomena in Nanostructured Cathode Catalyst Layer for Proton Exchange Membrane Fuel Cells

Published online by Cambridge University Press:  29 February 2012

Christopher D. Stiles  and
Yongqiang Xue
Christopher D. Stiles
Affiliation:
College of Nanoscale Science and Engineering, State University of New York, Albany, New York 12203, USA
Yongqiang Xue
Affiliation:
College of Nanoscale Science and Engineering, State University of New York, Albany, New York 12203, USA
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Abstract

A multi-component, multiple-relaxation-time (MRT) lattice Boltzmann (LB) model has been employed to study transport processes in the nanostructured cathode catalyst layer of a prototype proton exchange membrane (PEM) fuel cell. The electrode consists of an array of ordered and aligned nanorods that are continuously coated with platinum (Pt). The effect of spacing between the nanorods was studied. Simulation results showed that smaller spacing in nanorods leads to lower utilization of the Pt catalyst due to O2 mass transport limitations. Results from the LB model were found to be in good agreement with the continuum model using the finite element method (FEM) with the same boundary conditions until the systems reached the O2 mass transport limited regions, where the solutions diverged.

Keywords

fluidicsenergy generationnanostructure
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1384: Symposium B – Advanced Materials for Fuel Cells , 2012 , mrsf11-1384-b06-02
Copyright
Copyright © Materials Research Society 2012

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References

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