INVESTIGADORES
SAMBETH jorge Enrique
artículos
Título:
In situ DRIFTS study of the adsorptionoxidation of CH OH 3
Autor/es:
SAMBETH, JORGE; M. CENTENO; PAUL ANTONIO; BRIAND LAURA; THOMAS, HORACIO JORGE; ODRIOZOLA JOSE
Revista:
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
Editorial:
Elsevier
Referencias:
Lugar: Amsterdam; Año: 2000 vol. 161 p. 89 - 97
ISSN:
1381-1169
Resumen:
Abstract
The oxidation of CH3OH on V2O5 has been studied from room temperature to 2508C. The reaction products were
analyzed by on-line gas chromatographyGC.and the adsorbed species were characterized by Ain situB diffuse reflectance
infrared Fourier transform spectroscopyDRIFTS.. Both isothermal and non-isothermal experiments were carried out in
order to identify adsorbed species in the oxidation of CH3OH on V2O5 catalysts. The interaction of CH3OH with theV2O5
order to identify adsorbed species in the oxidation of CH3OH on V2O5 catalysts. The interaction of CH3OH with theV2O5
infrared Fourier transform spectroscopyDRIFTS.. Both isothermal and non-isothermal experiments were carried out in
order to identify adsorbed species in the oxidation of CH3OH on V2O5 catalysts. The interaction of CH3OH with theV2O5
order to identify adsorbed species in the oxidation of CH3OH on V2O5 catalysts. The interaction of CH3OH with theV2O5
analyzed by on-line gas chromatographyGC.and the adsorbed species were characterized by Ain situB diffuse reflectance
infrared Fourier transform spectroscopyDRIFTS.. Both isothermal and non-isothermal experiments were carried out in
order to identify adsorbed species in the oxidation of CH3OH on V2O5 catalysts. The interaction of CH3OH with theV2O5
order to identify adsorbed species in the oxidation of CH3OH on V2O5 catalysts. The interaction of CH3OH with theV2O5
infrared Fourier transform spectroscopyDRIFTS.. Both isothermal and non-isothermal experiments were carried out in
order to identify adsorbed species in the oxidation of CH3OH on V2O5 catalysts. The interaction of CH3OH with theV2O5
order to identify adsorbed species in the oxidation of CH3OH on V2O5 catalysts. The interaction of CH3OH with theV2O5
3OH on V2O5 has been studied from room temperature to 2508C. The reaction products were
analyzed by on-line gas chromatographyGC.and the adsorbed species were characterized by Ain situB diffuse reflectance
infrared Fourier transform spectroscopyDRIFTS.. Both isothermal and non-isothermal experiments were carried out in
order to identify adsorbed species in the oxidation of CH3OH on V2O5 catalysts. The interaction of CH3OH with theV2O5
order to identify adsorbed species in the oxidation of CH3OH on V2O5 catalysts. The interaction of CH3OH with theV2O5
infrared Fourier transform spectroscopyDRIFTS.. Both isothermal and non-isothermal experiments were carried out in
order to identify adsorbed species in the oxidation of CH3OH on V2O5 catalysts. The interaction of CH3OH with theV2O5
order to identify adsorbed species in the oxidation of CH3OH on V2O5 catalysts. The interaction of CH3OH with theV2O5
GC.and the adsorbed species were characterized by Ain situB diffuse reflectance
infrared Fourier transform spectroscopyDRIFTS.. Both isothermal and non-isothermal experiments were carried out in
order to identify adsorbed species in the oxidation of CH3OH on V2O5 catalysts. The interaction of CH3OH with theV2O5
order to identify adsorbed species in the oxidation of CH3OH on V2O5 catalysts. The interaction of CH3OH with theV2O5
DRIFTS.. Both isothermal and non-isothermal experiments were carried out in
order to identify adsorbed species in the oxidation of CH3OH on V2O5 catalysts. The interaction of CH3OH with theV2O53OH on V2O5 catalysts. The interaction of CH3OH with theV2O5
surface results in the formation of methoxy groups and VOH species as stated by DRIFTS. The infrared spectra suggest
that more than one catalytic site are involved in the adsorption process. The formation of VOH and the resulting reduction
of the vanadia catalyst leading to V4qfO and V3q groups is inferred from DRIFTS data and X-ray diffraction patterns of
the used catalysts showing the presence of reduced oxide phases. As the reaction proceeds, the adsorbed methoxy species are
oxidized to H2CO, formate species, partial oxidation products, CO and CO2. q2000 Elsevier Science B.V. All rights
reserved.
reserved.
the used catalysts showing the presence of reduced oxide phases. As the reaction proceeds, the adsorbed methoxy species are
oxidized to H2CO, formate species, partial oxidation products, CO and CO2. q2000 Elsevier Science B.V. All rights
reserved.
reserved.
4qfO and V3q groups is inferred from DRIFTS data and X-ray diffraction patterns of
the used catalysts showing the presence of reduced oxide phases. As the reaction proceeds, the adsorbed methoxy species are
oxidized to H2CO, formate species, partial oxidation products, CO and CO2. q2000 Elsevier Science B.V. All rights
reserved.
reserved.
2CO, formate species, partial oxidation products, CO and CO2. q2000 Elsevier Science B.V. All rights
reserved.