A new cell for the study of in situ chemical reactions using X-ray absorption spectroscopy.
J Synchrotron Radiat
; 12(Pt 4): 499-505, 2005 Jul.
Article
en En
| MEDLINE
| ID: mdl-15968129
ABSTRACT
An in situ cell for reductive and oxidative treatments at different temperatures that allows the possibility of recording data as a function of temperature has been designed and constructed for X-ray absorption experiments at the GILDA beamline BM08 of ESRF. The cell is linked to a mass quadrupole spectrometer providing control of the reaction gases and monitoring of the products. The apparatus allows measurements to be performed both in transmission and fluorescence geometry. The cell was tested by studying the CO oxidation reaction promoted by a Pt/ceria-zirconia-supported catalyst. The CO(2) yield is correlated with the structural results confirming the existence of a strong metal-support interaction between the Pt metal clusters and the ceria-zirconia support.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Oxígeno
/
Manejo de Especímenes
/
Espectrometría por Rayos X
/
Difracción de Rayos X
/
Dióxido de Carbono
/
Análisis de Inyección de Flujo
Tipo de estudio:
Evaluation_studies
Idioma:
En
Revista:
J Synchrotron Radiat
Asunto de la revista:
RADIOLOGIA
Año:
2005
Tipo del documento:
Article
País de afiliación:
Italia