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Ligand and support effects on the reactivity and stability of Au38(SR)24 catalysts in oxidation reactions

Author
Zhang, B.; García, C.; Sels, A.; Salassa, G.; Rameshan, C.; Llorca, J.; Hradil, K.; Rupprechter, G.; Barrabés, N.; Bürgi, T.
Type of activity
Journal article
Journal
Catalysis communications
Date of publication
2019-10-01
Volume
130
Number
105768
First page
105768:1
Last page
105768:7
DOI
10.1016/j.catcom.2019.105768
Repository
http://hdl.handle.net/2117/172711 Open in new window
URL
https://www.sciencedirect.com/science/article/pii/S1566736719302304 Open in new window
Abstract
Thiolate protected metal nanoclusters are emerging materials for the preparation of atomically defined heterogeneous catalysts. Recently it was revealed that the ligands migrated to the support upon cluster deposition, which influences the catalytic behaviour. Here we examined the role of the protecting thiolate ligands on the cyclohexane oxidation for Au38(SR)24 supported on CeO2 and Al2O3. Sulfur containing products were detected. XANES S K-edge measurements revealed SOx species on the support...
Citation
Zhang, B. [et al.]. Ligand and support effects on the reactivity and stability of Au38(SR)24 catalysts in oxidation reactions. "Catalysis communications", 1 Octubre 2019, vol. 130, núm. 105768, p. 105768:1-105768:7.
Keywords
Gold, Heterogeneous catalysis, Nanoclusters, Oxidation reaction, Surface, Thiolate ligands, Xafs
Group of research
CRnE - Barcelona Research Center in Multiscale Science and Engineering
NEMEN - Nanoengineering of Materials Applied to Energy

Participants

  • Zhang, Bei  (author)
  • García Yago, Clara  (author)
  • Sels, A.  (author)
  • Salassa, Giovanni  (author)
  • Rameshan, Christoph  (author)
  • Llorca Pique, Jordi  (author)
  • Hradil, Klaudia  (author)
  • Rupprechter, Guenther  (author)
  • Barrabés, N.  (author)
  • Bürgi, T.  (author)