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Radical scavengers to protect platinum group metal-free electrocatalysts


Using metal oxide nanoparticle additives can protect platinum group metal-free electrocatalysts from the attack of oxidizing radicals. Fuel cells with these radical scavengers have better durability than fuel cells without the scavengers.

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Fig. 1: Fuel cell durability test.


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This is a summary of: Xie, H. et al. Ta–TiOx nanoparticles as radical scavengers to improve the durability of Fe–N–C oxygen reduction catalysts. Nat. Energy (2022).

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Radical scavengers to protect platinum group metal-free electrocatalysts. Nat Energy 7, 220–221 (2022).

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