2 research outputs found
Size-Specific Infrared Spectroscopic Study of the Reactions between Water Molecules and Neutral Vanadium Dimer: Evidence for Water Splitting
Investigation
of the reactions between water molecules and neutral
metal clusters is important in water splitting but is very challenging
due to the inherent difficulty of size selection. Here, we report
a size-specific infrared-vacuum ultraviolet spectroscopic study on
the reactions of water with neutral vanadium dimer. The V2O3H4 and V2O4H6 products were characterized to have unexpected V2(μ2-OH)(μ2-H)(η1-OH)2 and V2(μ2-OH)2(η1-H)2(η1-OH)2 structures,
indicative of a water decomposition. A combination of theory and experiment
reveals that the water splitting by V2 is both thermodynamically
exothermic and kinetically facile in the gas phase. The present system
serves as a model for clarifying the pivotal roles played by neutral
metal clusters in water decomposition and also opens new avenues toward
systematic understanding of water splitting by a large variety of
single-cluster catalysts
Size-Specific Infrared Spectroscopic Study of the Reactions between Water Molecules and Neutral Vanadium Dimer: Evidence for Water Splitting
Investigation
of the reactions between water molecules and neutral
metal clusters is important in water splitting but is very challenging
due to the inherent difficulty of size selection. Here, we report
a size-specific infrared-vacuum ultraviolet spectroscopic study on
the reactions of water with neutral vanadium dimer. The V2O3H4 and V2O4H6 products were characterized to have unexpected V2(μ2-OH)(μ2-H)(η1-OH)2 and V2(μ2-OH)2(η1-H)2(η1-OH)2 structures,
indicative of a water decomposition. A combination of theory and experiment
reveals that the water splitting by V2 is both thermodynamically
exothermic and kinetically facile in the gas phase. The present system
serves as a model for clarifying the pivotal roles played by neutral
metal clusters in water decomposition and also opens new avenues toward
systematic understanding of water splitting by a large variety of
single-cluster catalysts