Information from the abstract
Proton exchange membrane fuel cell (PEMFC) performance is strongly affected by ionomer distribution within catalyst layers (CLs). In this study, five catalyst-coated membrane (CCM) configurations, with additional ionomer layers, uniform ionomer distribution, and gradient ionomer distribution, are investigated to assess the impact of these structural modifications on electrochemical behavior. The results show that introducing a single ionomer layer between the membrane and CL improves interfacial contact and proton transport, whereas excessive ionomer layers increase transport resistance. For uniformly distributed ionomer, ionomer-to-carbon support (I/C) mass ratios from 0.75 to 1.25 reveal a balance between proton conduction and transport resistance, with the optimum performance at I/C = 1.00. Based on this, a gradient structure with I/C = 1.25 near the membrane and I/C = 1.00 toward the gas diffusion layer achieves the best performance, reaching 1.44 W/cm 2 at 2.5 A/cm 2 , with increasing trend maintained toward higher current densities.
Why this record is monitored
This record has an Impact Signal of 71/100 based on recency, source, collaboration, and bibliographic signals. It prioritizes monitoring and is not a judgment of research quality.
Related topics: Fuel Cells and Related Materials · Electrocatalysts for Energy Conversion · Advancements in Solid Oxide Fuel Cells
Thai researcher and institutional participation
Sushanta Kumar Mitra · Chulalongkorn University
Data limitations
This page is a bibliographic record based on abstract-level information, not a full analysis or quality assessment. Verify the DOI and original article before citation.