Mass-selected cluster deposition is used to prepare nanocatalysts composed of atomically precise metal compound clusters (oxides, sulfides and carbides) supported on metal surfaces for investigations of interfacial electronic structure, surface morphology and reactivity. Such “inverse” model catalysts are especially useful for probing electronic interactions at metal-metal compound interfaces and understanding their role in reaction mechanisms. A unique advantage of mass selection for metal compound clusters is the ability to control stoichiometry which allows variation of the average metal oxidation state and the introduction of oxygen or sulfide vacancies. Results will be presented for the surface morphology and reactivity of metal oxide clusters on Au(111) and Cu(111) along with initial work on promoted metal sulfides for CO<sub>2</sub> activation.<br/>

Structure and reactivity of nanocatalysts prepared by mass-selected cluster deposition

2019 Spring National Meeting

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