Nanoscale mapping of catalytic activity using tip-enhanced Raman spectroscopy

Nanoscale mapping of catalytic activity using tip-enhanced Raman spectroscopy

Chemical mapping of a photocatalytic reaction with nanoscale spatial resolution is demonstrated for the first time using tip-enhanced Raman spectroscopy (TERS). An ultrathin alumina film applied to the Ag-coated TERS tip blocks catalytic interference whilst maintaining near-field electromagnetic enh...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Nanoscale 2015-04, Vol.7 (16), p.7133-7137
Hauptverfasser: Kumar, N, Stephanidis, B, Zenobi, R, Wain, A. J, Roy, D
Format: Artikel
Sprache:eng
Schlagworte:
Aluminum oxide
Catalytic activity
Mapping
Nanostructure
Raman spectroscopy
Silver
Spectroscopy
Surface chemistry
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Chemical mapping of a photocatalytic reaction with nanoscale spatial resolution is demonstrated for the first time using tip-enhanced Raman spectroscopy (TERS). An ultrathin alumina film applied to the Ag-coated TERS tip blocks catalytic interference whilst maintaining near-field electromagnetic enhancement, thus enabling spectroscopic imaging of catalytic activity on nanostructured Ag surfaces. Chemical mapping of a photocatalytic reaction with nanoscale spatial resolution is demonstrated for the first time using tip-enhanced Raman spectroscopy (TERS).
ISSN:2040-3364
2040-3372
DOI:10.1039/c4nr07441f