Published April 15, 2004
| Version v1
Journal article
Boria modified alumina probed by methanol dehydration and IR spectroscopy
Description
Al2O3·B2O3 catalysts were synthesized by co-precipitation and impregnation methods applying two calcination temperatures and boria loadings. Catalysts were analyzed by IR spectroscopy of pyridine and CO2 adsorption and were evaluated in methanol dehydration. Results showed that boron addition to alumina causes a decrease of the number of basic and Lewis acid sites on alumina surface. It could also be observed an enhancement in acid strength of Lewis sites for impregnated samples. The results of methanol dehydration show that strong Broensted sites are not formed on borate alumina
Additional details
Identifiers
- DOI
- 10.1016/j.apsusc.2003.11.052;
- PII
- S0169433203012935;
Publishing Information
- Journal Title
- Applied Surface Science
- Journal Volume
- 227
- Journal Issue
- 1-4
- Journal Page Range
- p. 132-138
- ISSN
- 0169-4332
- CODEN
- ASUSEE
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38091843
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- ADSORPTION; ALUMINIUM OXIDES; BORATES; BORON ADDITIONS; CALCINATION; CARBON DIOXIDE; CATALYSTS; COPRECIPITATION; DEHYDRATION; INFRARED SPECTRA; LEWIS ACIDS; METHANOL; PYRIDINE; SURFACES
- Descriptors DEC
- ALCOHOLS; ALLOYS; ALUMINIUM COMPOUNDS; AZINES; BORON ALLOYS; BORON COMPOUNDS; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; CHEMICAL REACTIONS; DECOMPOSITION; HETEROCYCLIC COMPOUNDS; HYDROGEN COMPOUNDS; HYDROXY COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PRECIPITATION; PYRIDINES; PYROLYSIS; SEPARATION PROCESSES; SORPTION; SPECTRA; THERMOCHEMICAL PROCESSES
Optional Information
- Copyright
- Copyright (c) 2003 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.