Supported sub-nanometer Ta oxide clusters as model catalysts for the selective epoxidation of cyclooctene | Zendy

Gregor Zwaschka | Zendy; Manuel Rondelli | Zendy; Maximilian Krause | Zendy; Marian D. Rötzer | Zendy; Mohamed Nejib Hedhili | Zendy; Ueli Heiz | Zendy; JeanMarie Basset | Zendy; Florian F. Schweinberger | Zendy; Valerio D’Elia | Zendy

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Supported sub-nanometer Ta oxide clusters as model catalysts for the selective epoxidation of cyclooctene

Author(s) -

Gregor Zwaschka,

Manuel Rondelli,

Maximilian Krause,

Marian D. Rötzer,

Mohamed Nejib Hedhili,

Ueli Heiz,

JeanMarie Basset,

Florian F. Schweinberger,

Valerio D’Elia

Publication year - 2018

Publication title -

new journal of chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.693

H-Index - 122

eISSN - 1369-9261

pISSN - 1144-0546

DOI - 10.1039/c7nj04275b

Subject(s) - chemistry , cyclooctene , tantalum , nanometre , catalysis , oxide , silicate , ligand (biochemistry) , inorganic chemistry , nanotechnology , chemical engineering , organic chemistry , biochemistry , materials science , receptor , engineering

The preparation of organic ligand-free, isolated tantalum oxide complexes (Ta1) and small clusters (Tan>1) on flat silicate supports was accomplished by ultra-high vacuum (UHV) techniques followed by oxidation in air. The resulting surface complexes were thoroughly characterized and tested as supported catalysts for the epoxidation of cycloalkenes. The observed catalytic performance highlights the potential of the applied method for the production of active catalysts and the study of well-defined, ligand-free metal oxide moieties.

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