Delocalized Electronic States: The High-Shell Nitrogen Effects on Metal–Nitrogen–Carbon Catalysts - Jingze Shao; Shaoqing Chen; Xinbo Li; Zian Xu; Guichen Gao; Xu Zhao; Ran Jia; Wenhua Zhang; Jingkai Lin; Huayang Zhang; Liping Li; Guangshe Li (Journal of the American Chemical Society, 2026)