Zeolite‐Stabilized Di‐ and Tetranuclear Molybdenum Sulfide Clusters Form Stable Catalytic Hydrogenation Sites

Supercages of faujasite (FAU)‐type zeolites serve as a robust scaffold for stabilizing dinuclear (Mo(2)S(4)) and tetranuclear (Mo(4)S(4)) molybdenum sulfide clusters. The FAU‐encaged Mo(4)S(4) clusters have a distorted cubane structure similar to the FeMo‐cofactor in nitrogenase. Both clusters posse...

Descripción completa

Detalles Bibliográficos
Autores principales: Weindl, Roland, Khare, Rachit, Kovarik, Libor, Jentys, Andreas, Reuter, Karsten, Shi, Hui, Lercher, Johannes A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2021
Materias:
Communications
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8252740/
https://www.ncbi.nlm.nih.gov/pubmed/33576131
http://dx.doi.org/10.1002/anie.202015769
Descripción
Sumario:Supercages of faujasite (FAU)‐type zeolites serve as a robust scaffold for stabilizing dinuclear (Mo(2)S(4)) and tetranuclear (Mo(4)S(4)) molybdenum sulfide clusters. The FAU‐encaged Mo(4)S(4) clusters have a distorted cubane structure similar to the FeMo‐cofactor in nitrogenase. Both clusters possess unpaired electrons on Mo atoms. Additionally, they show identical catalytic activity per sulfide cluster. Their catalytic activity is stable (>150 h) for ethene hydrogenation, while layered MoS(2) structures deactivate significantly under the same reaction conditions.

Ejemplares similares