fig7
![Metal-nitrogen-carbon catalysts towards acidic ORR in PEMFC: fundamentals, durability challenges, and improvement strategies](https://image.oaes.cc/ab15714c-b740-4069-b691-0729178addb2/5483.fig.7.jpg)
Figure 7. Mechanism of the demetallation induced by N protonation. This figure is quoted with permission from Yang et al.[101].
Figure 7. Mechanism of the demetallation induced by N protonation. This figure is quoted with permission from Yang et al.[101].
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