Identifying low-coverage surface species on supported noble metal nanoparticle catalysts by DNP-NMR

Identifying low-coverage surface species on supported noble metal nanoparticle catalysts by DNP-NMR

DNP-NMR spectroscopy has been applied to enhance the signal for organic molecules adsorbed on γ-Al 2 O 3 -supported Pd nanoparticle catalysts. By offering >2500-fold time savings, the technique enabled the observation of 13 C- 13 C cross-peaks for low coverage species, which were assigned to prod...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Chemical communications (Cambridge, England) England), 2016-01, Vol.52 (9), p.1859-1862
Hauptverfasser: Johnson, Robert L, Perras, Frédéric A, Kobayashi, Takeshi, Schwartz, Thomas J, Dumesic, James A, Shanks, Brent H, Pruski, Marek
Format: Artikel
Sprache:eng
Schlagworte:
Aluminum Oxide - chemistry
Catalysis
Catalysts
Degradation
Magnetic Resonance Spectroscopy - methods
Metal Nanoparticles
Nanostructure
Noble metals
Organic chemistry
Oxidation-Reduction
Palladium
Spectroscopy
Surface Properties
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:DNP-NMR spectroscopy has been applied to enhance the signal for organic molecules adsorbed on γ-Al 2 O 3 -supported Pd nanoparticle catalysts. By offering >2500-fold time savings, the technique enabled the observation of 13 C- 13 C cross-peaks for low coverage species, which were assigned to products from oxidative degradation of methionine adsorbed on the nanoparticle surface. DNP-NMR spectroscopy has been applied to enhance the signal for organic molecules adsorbed on γ-Al 2 O 3 -supported Pd nanoparticle catalysts.
ISSN:1359-7345
1364-548X
DOI:10.1039/c5cc06788j