biostudies-literatureUnknown16(10)Li RDeveloping advanced catalysts with rapid hydrogen evolution reaction (HER) kinetics in alkaline media is vital for hydrogen production. Through the d-p orbital hybridization effect, the electronic structure and H* adsorption can be optimized on metal species. Herein, a N-doped hollow carbon (H-NPC)-supported Ru cluster (c-Ru@H-NPC) catalyst was constructed <i>via</i> carbonization of well-defined hollow metal-organic frameworks, followed by etching and anchoring of Ru clusters. The hollow structure could not alter the coordination number of Ru while exhibiting higher-level electron transfer, thereby strengthening the orbital hybridization. Additionally, finite element simulations indicated the acceleration of H₂ diffusion for hollow structures. Furthermore, the N-doping strengthChemical science4383-4391https://www.ebi.ac.uk/biostudies/studies/S-EPMC11795299biostudies-literatureStrengthened d-p orbital hybridization and hydrogen diffusion in a hollow N-doped porous carbon/Ru cluster catalyst system for hydrogen evolution reactions.PMC11795299Yang XJiang LZhou QLi RLuo XYu JWei JZhao HWang LMu SfalseStrengthened d-p orbital hybridization and hydrogen diffusion in a hollow N-doped porous carbon/Ru cluster catalyst system for hydrogen evolution reactions.Developing advanced catalysts with rapid hydrogen evolution reaction (HER) kinetics in alkaline media is vital for hydrogen production. Through the d-p orbital hybridization effect, the electronic structure and H* adsorption can be optimized on metal species. Herein, a N-doped hollow carbon (H-NPC)-supported Ru cluster (c-Ru@H-NPC) catalyst was constructed <i>via</i> carbonization of well-defined hollow metal-organic frameworks, followed by etching and anchoring of Ru clusters. The hollow structure could not alter the coordination number of Ru while exhibiting higher-level electron transfer, thereby strengthening the orbital hybridization. Additionally, finite element simulations indicated the acceleration of H₂ diffusion for hollow structures. Furthermore, the N-doping strength2025-01-01T00:00:00Z2025 Mar2025-04-04T23:00:11.705Z2025-04-04T23:00:11.705ZS-EPMC117952993991688810.1039/d4sc08498e