Low-coordinated Co-Ru dual-atom enables ambient ammoxidation via unlocking competitive adsorption limitations.

ABSTRACT: Direct ammoxidation of biomass-derived alcohols/aldehydes to nitriles faces challenges from N-species competitive adsorption, leading to low efficiency under harsh conditions. Herein, we report the rational design of a single-nitrogen-bridged Co-Ru dual-atom catalyst (CoRu-N-C) on nitrogen-doped carbon, enabling efficient ammoxidation at ambient conditions. At 35 °C and 1 bar air, CoRu-N-C achieved 98% yield of 2-furonitrile (FAN) with 73 mmol/g_-metal/h productivity, representing a 3.5-fold enhancement compared to Co-N-C, and outperforming numerous reported noble/non-noble metal catalysts. Mechanistic studies reveal synergistic O₂ and imine adsorption on low-coordinated CoN₃ and RuN₃ sites, mitigating imine-induced oxygen activation inhibition. S

SUBMITTER: Yang J 

PROVIDER: S-EPMC12546627 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature