Unveiling the sensitivity and significance of the Ni oxidation state for alkaline hydrogen oxidation electrocatalysis

Proceedings of the National Academy of Sciences, Volume 123, Issue 12, March 2026. <br/>SignificanceThe sluggish hydrogen oxidation reaction (HOR) remains a major barrier to eliminating the reliance on precious group metal (PGM) catalysts in fuel cells. Here, we elucidate the role of graphene in stabilizing metallic Ni surfaces against …