Application of Electrospinning Technique in the Fabrication of Catalyst Layer of Membrane Electrode Assemblies

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Subject Area(s)

Chemical Engineering


Inspired by the original work published by Pintauro's group, the authors investigated the application of an electrospinning (E-spin) method for the fabrication of the catalyst layer of proton exchange membrane fuel cell electrode. Electrochemical performance of the membrane electrode assemblies (MEA) produced by E-spin was characterized can compared with MEA produced with an ultrasonic spraying technique. A simple polarization curve analysis was conducted to help resolve the sources of over-potential. The platinum loading, electrode morphology were characterized by X-ray fluorescence and scanning electron microscopy. The electrospinning technique was found to yield high performance electrode with low platinum loading. The E-spin method resulted in an electrode with high electrochemical area and platinum utilization.