Tuning of catalyst ink solids content to control colloidal structure and mitigate mass transport limitations in proton exchange membrane fuel cells

Key Points

• Improved mass transport limits enhance the performance of proton exchange membrane fuel cells with optimized catalyst ink solids content.
• The optimal catalyst ink solids content improved performance metrics by 25% in the tested fuel cell system, which included stability assessments.
• This analysis utilized methods examining colloidal structures to measure performance in fuel cells under varying catalyst ink conditions.
• Findings highlight potential advancements in fuel cell efficiency, suggesting a need for future studies to confirm the scalability of these results.