AApplied Catalysis B: Environmental3/21/2026Spatial and chemical confinement catalysis of Ni single atoms on graphdiyne: Dual confinement electric fields precisely regulate reaction-path barriers for large-scale photocatalytic hydrogen evolutionZhengyu Zhou·Zhiliang Jin·Huiqin Yao·Xuqiang Hao·Xin Guo·Teng LiRead at Applied Catalysis B: EnvironmentalTagsElectrocatalysts for Energy ConversionRenewable Energy, Sustainability and the Environment