Highly performing fuel cell catalysts tested at the fundamental level rarely translate well to full devices, in part due complicated ionomer-catalyst interfaces at the heart of devices, where the electrochemical reactions occur. Here the authors demonstrate ionomerless-thin-film-deposited cathodes that have comparable activity trends across fundamental tests and fuel cells.
- John C. Douglin
- José A. Zamora Zeledón
- Dario R. Dekel
