Atomic Interface‐Exciting Catalysis on Cobalt Nitride‐Oxide for Accelerating Hydrogen Generation
Authors:
Abstract
The rational design of the interface structure between nitride and oxide using the same metallic element and correlating the interfacial active center with a determined catalytic mechanism remain challenging. Herein, a Co4N‐Co3O4 interface structure is designed to determine the effect of interfacial active centers on hydrogen generation from ammonia borane. An unparalleled catalytic activity toward H2 production with a turnover frequency up to 79 min−1 is achieved on Co4N‐Co3O4@C catalyst for ten recycles. Experimental analyses and theoretical simulation suggest that the atomic interface‐exciting effect (AieE) is responsible for the high catalytic activity. The Co4N‐Co3O4 interface facilitates the targeted adsorption and activation of NH3BH3 and H2O molecules to generate H* and H2. The two active centers of Co(N)* and Co(O)* at the Co4N‐Co3O4 interface activate NH3BH3 and H2O, respectively. This proof‐of‐concept research on AieE provides important insights regarding the design of heterogeneous catalysts and promotes the development of the nature and regulation of energy chemical conversion.Keywords
Funding Information
- National Natural Science Foundation of China (22075254, 31901272, 52071135, 51871090, U1804135, 51671080)
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