Mitigating Mass Transport Capacity in Ultralow Pt PEMFCs via Optimization of Ionomer Coverage and Pt Utilization
, with a 33.7% increase over the commercial benchmark. Quantitative analysis of double-layer capacitance further confirmed a more favorable ionomer coverage on the optimized support, minimizing the ionomer poisoning of Pt sites. This study demonstrates the collaborative benefit of carbon support modification in simultaneously enhancing oxygen reduction reaction kinetics and mass transport, providing a practical strategy for advanced ultralow Pt PEMFCs.
Authors
- X Li
- Rui Lin (ORCID: https://orcid.org/0000-0002-8191-479X)
- Xin Cai (ORCID: https://orcid.org/0009-0003-2424-6101)
- Yuchen Liu (ORCID: https://orcid.org/0009-0007-8295-0024)
Institutions
- Tongji University (CN)
Publication Details
- Journal
- ACS Applied Materials & Interfaces
- Published
- 2026-04-21
- DOI
- https://doi.org/10.1021/acsami.5c25006
- Primary Topic
- Fuel Cells and Related Materials
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Key Research and Development Program of China