Mathematical Modeling of a DMFC Cathode with a Double Catalyst Layered Structure Membrane Electrode Assemblies

Chun Guang Suo; Wen Bin Zhang; Da Da Wang

doi:10.4028/www.scientific.net/AMR.690-693.989

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 690-693Mathematical Modeling of a DMFC Cathode with a...

Mathematical Modeling of a DMFC Cathode with a Double Catalyst Layered Structure Membrane Electrode Assemblies

Abstract:

Membrane electrode assemblies (MEA) is the key component of a direct methanol fuel cell (DMFC) and its structure and fabrication technology influenced the performance of DMFC a lot. A novel structured MEA including a hydrophilic inner thin catalyst layer and a traditional outer catalyst layer, provide higher performance. To optimize the combination of the two catalysts layer a mathematical model based on Tafel type kinetics and semi-empirical mass transport coefficient was applied. The simulation of cathode overpotential results showed a DMFC with a 5μm thick inner Pt Blk catalyst layer and an 8μm thick outer 40wt%Pt/C catalyst layer as cathode electrode was the best.

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Periodical:

Advanced Materials Research (Volumes 690-693)

Pages:

989-992

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.690-693.989

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Online since:

May 2013

Authors:

Chun Guang Suo, Wen Bin Zhang, Da Da Wang

Keywords:

Cathode, MEA, Micro Direct Methanol Fuel Cell, Model

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