Nanostructured Catalyst Layer Allowing Production of Ultralow Loading Electrodes for Polymer Electrolyte Membrane Fuel Cells with Superior Performance.

ABSTRACT: This study introduces a simple method to produce ultralow loading catalyst-coated membrane electrodes, with an integrated carbon "nanoporous layer", for use in polymer electrolyte membrane fuel cells or other electrochemical devices. This approach allows fabrication of electrodes with loadings down to 5.2 μg_Pt cm^-2 on the anode and cathode (total 10.4 μg_Pt cm^-2, Pt₃Zn/C catalyst) in a controlled, uniform, and reproducible manner. These layers achieve high utilization of the catalyst as measured through electrochemical surface area and mass specific activities. Electrodes composed of Pt/C, PtNi/C, Pt₃Co/C, and Pt₃Zn/C catalysts containing 5.2-7.1 μg_Pt cm^-2 have been fabricated and tested. Thes

SUBMITTER: Jackson C 

PROVIDER: S-EPMC10751738 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature