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Die Desaktivierung von Heterogenkatalysatoren ist ein Problem, besonders bei Flüssigphasenreaktionen und Metallkatalysatoren wie Kupfer. In ihrer Zuschrift auf S. 14053 ff. zeigen J. A. Dumesic et al., dass Atomlagenabscheidung für die Beschichtung von metallischen Nanopartikeln verwendet werden kann, wodurch die irreversible Katalysator‐Desaktivierung unter Flüssigphasenbedingungen verhindert wird.
Atomic layer deposition (ALD) of an alumina overcoat can stabilize a base metal catalyst (e.g., copper) for liquid‐phase catalytic reactions (e.g., hydrogenation of biomass‐derived furfural in alcoholic solvents or water), thereby eliminating the deactivation of conventional catalysts by sintering and leaching. This method of catalyst stabilization alleviates the need to employ precious metals (e...
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