Journal
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
Volume 11, Issue 23, Pages 10114-10123Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpclett.0c02904
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Funding
- NSF [CBET-1554112, CBET-1804128]
- Catalysis Center for Energy Innovation, an Energy Frontier Research Center - U.S. DOE BES [DE-SC0001004]
- DOE BES [DE-SC0021124]
- U.S. Department of Energy (DOE) [DE-SC0021124] Funding Source: U.S. Department of Energy (DOE)
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The development of experimental and computational tools that give accurate and visual active site descriptions has renewed research interest in atomically dispersed metal catalysts. In this perspective, we describe our approach to synthesizing and understanding atomically dispersed Pt-group metals on oxide supports. Using site-specific characterization, we show that these metal species have distinct reactivity from metal clusters. We argue that producing materials where all metal sites have identical local coordination is key to both accurately assessing catalytic properties and achieving single-site behavior. Methods for assessing site uniformity are considered. We show that producing uniform metal species allows us to describe their structure at the atomic scale and understand how this structure evolves under different conditions. Finally, we suggest pathways to increased functionality for atomically dispersed catalysts, through control of their local coordination and steric environment and through cooperativity with different sites.
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