Exploring critical parameters of electrode fabrication in polymer electrolyte membrane fuel cells

Microstructure and electrochemical properties of the cathode catalyst layers (CCL) a polymer electrolyte membrane fuel cells (PEMFC) have great impact on performance durability cell. The aim this work is to establish link between CCL structure cell performance. To obtain CCLs with unique structures six types electrodes were prepared, each different coating technique but same Pt loading. techniques are airbrush, screen printing, inkjet dry spraying, doctor blade drop casting. Moreover, intrinsic PEMFC such as porosity, permeability, diffusivity well ionomer distribution determined by Focused Ion Beam Scanning Electron Microscopy (FIB-SEM) Atomic Force (AFM). Overall, 12 parameters been evaluated. Generally, low fractions uncovered Pt/C show higher at current densities. In case more homogeneous leads utilization. At high densities transport be considered in addition utilization explain their prepared printing shows fraction combination good properties, leading best currents.