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

Gregor Zwaschka, Manuel Rondelli, Maximilian Krause, Marian David Rötzer, Mohamed N. Hedhili, Ulrich Heiz, Jean-Marie Basset, Florian Schweinberger, Valerio D’Elia

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

The preparation of organic ligands-free, isolated tantalum oxide atoms (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.
Original languageEnglish (US)
Pages (from-to)3035-3041
Number of pages7
JournalNew Journal of Chemistry
Volume42
Issue number4
DOIs
StatePublished - 2018

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