Single atoms as a catalyst: Surprising effects ensue – EurekAlert

Metals such as gold or platinum are often used as catalysts. In the catalytic converters of vehicles, for example, platinum nanoparticles convert poisonous carbon monoxide into non-toxic CO2. Because platinum and other catalytically active metals are expensive and rare, the nanoparticles involved have been made smaller and smaller over time.
“Single-atom” catalysts are the logical end point of this downsizing: The metal is no longer present as particles, but as individual atoms that are anchored…

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