Published 2004 | Version v1
Miscellaneous Open

Synthesis by Sol-gel and characterization of catalysts Ag/Al2O3-CeO2

Creators

  • 1. ININ, 52045 Ocoyoacac, Estado de Mexico (Mexico)
  • 2. BUAP, Centro de Vinculacion, 72000 Puebla (Mexico)
  • 3. BUAP, Facultad de Quimica, 72000 Puebla (Mexico)

Description

Aluminia, cerium and mixed oxides Al2O3-CeO2 with different relationship Al/Ce (0.75, 0.50 and 0.25) were prepared by sol-gel and used as support for the Ag. The samples were characterized by XRD, DRIFT, TPR and adsorption of N2 to temperature of liquid nitrogen. The surface area BET showed that the materials that contain aluminia present near values among them. XRD allowed to identify to the cerianite in the oxides that whose support contains cerium and to the α-aluminia. A mixture of phases was observed in the aluminia. Vibration bands attributed to the bond Al-O and Ce-O were observed by DRIFT in the catalytic materials. TPR showed differences in the reducibility of the Ag precursor in the indicative catalysts of a different interaction with the support. (Author)

Availability note (English)

Available from INIS in electronic form

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Additional details

Additional titles

Original title (Spanish)
Sintesis por Sol-gel y caracterizacion de catalizadores Ag/Al

Publishing Information

Imprint Pagination
7 p.
Report number
INIS-MX--1751

Conference

Title
14. ININ-SUTIN Technical and Scientific Congress
Dates
24-26 Nov 2004
Place
Salazar, Estado de Mexico (Mexico)

INIS

Country of Publication
Mexico
Country of Input or Organization
Mexico
INIS RN
36058793
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Resource subtype / Literary indicator
Conference, Numerical Data
Descriptors DEI
ABSORPTION SPECTROSCOPY; ADSORPTION; ALUMINIUM OXIDES; CATALYSTS; CERIUM OXIDES; DIAGRAMS; EXPERIMENTAL DATA; FOURIER TRANSFORMATION; IMAGES; MICROSCOPES; MORPHOLOGY; NITROGEN; NITROGEN OXIDES; OXIDE MINERALS; SAMPLING; SCANNING ELECTRON MICROSCOPY; SELECTIVE CATALYTIC REDUCTION; SILVER; SOL-GEL PROCESS; SPECIFIC SURFACE AREA; SPECTROMETERS; SYNTHESIS; TEMPERATURE DEPENDENCE; THORIUM MINERALS; TIME DEPENDENCE; X-RAY DIFFRACTION
Descriptors DEC
ALUMINIUM COMPOUNDS; CERIUM COMPOUNDS; CHALCOGENIDES; CHEMICAL REACTIONS; COHERENT SCATTERING; DATA; DENITRIFICATION; DIFFRACTION; ELECTRON MICROSCOPY; ELEMENTS; INFORMATION; INTEGRAL TRANSFORMATIONS; MATERIALS; MEASURING INSTRUMENTS; METALS; MICROSCOPY; MINERALS; NITROGEN COMPOUNDS; NONMETALS; NUMERICAL DATA; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RADIOACTIVE MATERIALS; RADIOACTIVE MINERALS; RARE EARTH COMPOUNDS; REDUCTION; SCATTERING; SORPTION; SPECTROSCOPY; TRANSFORMATIONS; TRANSITION ELEMENTS