FUEL CELL ELECTRODES USING HIGH DENSITY SUPPORT MATERIAL

摘要

Methods of preparing fuel cells and fuel cell electrodes having catalyst with high density catalyst support are provided. One method of fabricating a fuel cell electrode comprises adjusting the gravimetric ratio of ionomer to catalyst support based on the density of the support material to optimize ionomer performance.

主权项

1. A method of fabricating a fuel cell electrode comprising:
setting a target volumetric ratio of an ionomer to a high density catalyst support by:
selecting a desired gravimetric ratio of the ionomer to a reference catalyst support and calculating a corresponding volumetric ratio of the ionomer to the reference catalyst support; andsetting the target volumetric ratio to the corresponding volumetric ratio; determining a relationship between a gravimetric ratio and a volumetric ratio for the high density catalyst support; and from the target volumetric ratio and the relationship, calculating a target gravimetric ratio of the ionomer to the high density support.