Abstract
The structure of cathode catalyst layer (CCL) is critically important for improved performance, durability, and stability of polymer electrolyte fuel cells (PEFCs). In this research, two types of CCL are designed to do comparison, one is flat structure, and the other is 3D structure. Inkjet printing method was used in this research to fabricate the structures of cathode catalyst layer, then the MEA was taken to do electrochemical evaluation. The results showed that electrochemical properties of CCL with 3D structure were better than the flat one through I-V curve and impedance. Overall, it is demonstrated that with a 3D structure, it is possible to achieve favorable morphological and microstructural characteristics.
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