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Single‐Atom Catalysts
Carbon‐supported single‐atom catalysts are subjected to surface oxidation and hydroxylation upon long‐term exposure to ambient environment, causing severe performance degradation. The hydrogen passivation strategy developed by Jianglan Shui and co‐workers in article number 2103600 can protect the catalytic active sites and ultimately improve the storage stability of single‐atom...
M–N–C (M = Fe, Co) are highly active nonprecious metal electrocatalysts for the oxygen reduction reaction (ORR) and other applications. Although their operation stability has been extensively studied in proton‐exchange‐membrane fuel cells, the storage stability that determines the performance maintenance before use has not yet been understood. Here, it is found that long‐term exposure of M–N–C catalysts...