FTIR spectroscopy and thermodynamics of CO and H2 adsorbed on γ-, δ- and α-Al2O3

The adsorption of CO and H 2 at the surface of transitional (γ and δ) and corundum (α) phases of Al 2 O 3 is studied by means of FTIR spectroscopy at temperature variable in the 293-60 K (CO) and 293-20 K (H 2 ) intervals with the aims of better clarifying the nature of the surface Lewis centres and...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Physical chemistry chemical physics : PCCP 2010, Vol.12 (24), p.6474-6482
Hauptverfasser: Gribov, Evgeniy N, Zavorotynska, Olena, Agostini, Giovanni, Vitillo, Jenny G, Ricchiardi, Gabriele, Spoto, Giuseppe, Zecchina, Adriano
Format: Artikel
Sprache:eng
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The adsorption of CO and H 2 at the surface of transitional (γ and δ) and corundum (α) phases of Al 2 O 3 is studied by means of FTIR spectroscopy at temperature variable in the 293-60 K (CO) and 293-20 K (H 2 ) intervals with the aims of better clarifying the nature of the surface Lewis centres and evaluate the thermodynamics of the adsorption process. The surface properties of aluminas are investigated by using H 2 as novel surface probe.
ISSN:1463-9076
1463-9084
DOI:10.1039/c002031c