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DOE OSTI · 2373188

Mesoporous Carbon-Based PGM-Free Catalyst Cathodes

Xie, Jian
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Abstract

Polymer electrolyte membrane fuel cell (PEMFC) is the most promising energy conversion technology which can be used as the power sources for the electric vehicles with the ultimate cleanness, (no carbon emission from the use of hydrogen), much-improved energy conversion efficiency, longer range, and rapid refueling. However, due to the large amount of platinum group metal (PGM) catalyst used in PEMFC electrodes, the high cost is the bottleneck for the broad commercialization of PEMFCs for transportation. Hence, there is a critical need to develop low-cost, high-performance PGM-free cathode catalysts that can dramatically reduce the cost of the catalyst in the PEMFC by one to two orders of magnitude. However, before PGM-free cathodes become viable, several technical challenges associated with PGM-free cathodes must be addressed, including the insufficient activity and stability of the catalysts as well as the large transport losses from the much thicker catalyst layer in the electrodes.

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08 HYDROGENcarbon defectschemical vapor depositionFe-N-CFe2O3oxygen reduction reactionproton-exchange membrane fuel cellsstability

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Xie, Jian. 2022-06-16. Mesoporous Carbon-Based PGM-Free Catalyst Cathodes. https://doi.org/10.2172/2373188

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