Monolayer structures of niobic acids supported on SiO[sub 2] and their catalytic activities for esterification of acetic acid with ethanol
Journal Article
·
· Journal of Physical Chemistry; (United States)
- Univ. of Tokyo (Japan)
New submonolayer niobic acid catalysts were prepared by the reaction of Nb(OC[sub 2]H[sub 5])[sub 5] with surface OH groups of SiO[sub 2], followed by H[sub 2]O treatment. The surface structures were characterized by means of EXAFS, XRD, XRF, and FT-IR. The niobic acids on SiO[sub 2] up to 8.0 wt % Nb loadings were found to grow in a monolayer mode. These catalysts showed activities 20 times as large as that of a niobic acid bulk catalyst for the esterification of acetic acid with ethanol. The activity was referred to Lewis acid sites in the monolayer structure, which was stable even after evacuation at high temperatures such as 873 K.
- OSTI ID:
- 6837327
- Journal Information:
- Journal of Physical Chemistry; (United States), Vol. 95:24; ISSN 0022-3654
- Country of Publication:
- United States
- Language:
- English
Similar Records
Creating Brønsted acidity at the SiO2-Nb2O5 interface
Effect of the SiO2 support on the catalytic performance of Ag/ZrO2/SiO2 catalysts for the single-bed production of butadiene from ethanol
Synthesis of sulfated titania supported on mesoporous silica using direct impregnation and its application in esterification of acetic acid and n-butanol
Journal Article
·
Mon Nov 09 00:00:00 EST 2020
· Journal of Catalysis
·
OSTI ID:6837327
+3 more
Effect of the SiO2 support on the catalytic performance of Ag/ZrO2/SiO2 catalysts for the single-bed production of butadiene from ethanol
Journal Article
·
Sat May 19 00:00:00 EDT 2018
· Applied Catalysis B: Environmental
·
OSTI ID:6837327
+3 more
Synthesis of sulfated titania supported on mesoporous silica using direct impregnation and its application in esterification of acetic acid and n-butanol
Journal Article
·
Tue Sep 15 00:00:00 EDT 2009
· Journal of Solid State Chemistry
·
OSTI ID:6837327
Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ACETIC ACID
ESTERIFICATION
ETHANOL
NIOBIUM OXIDES
CATALYTIC EFFECTS
ABSORPTION SPECTROSCOPY
CATALYST SUPPORTS
CHEMICAL PREPARATION
EXPERIMENTAL DATA
FINE STRUCTURE
FOURIER ANALYSIS
INFRARED SPECTRA
INORGANIC ACIDS
LEWIS ACIDS
SILICON OXIDES
X-RAY DIFFRACTION
X-RAY FLUORESCENCE ANALYSIS
X-RAY SPECTROSCOPY
ALCOHOLS
CARBOXYLIC ACIDS
CHALCOGENIDES
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
COHERENT SCATTERING
DATA
DIFFRACTION
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INFORMATION
MONOCARBOXYLIC ACIDS
NIOBIUM COMPOUNDS
NONDESTRUCTIVE ANALYSIS
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
REFRACTORY METAL COMPOUNDS
SCATTERING
SILICON COMPOUNDS
SPECTRA
SPECTROSCOPY
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
X-RAY EMISSION ANALYSIS
400201* - Chemical & Physicochemical Properties
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ACETIC ACID
ESTERIFICATION
ETHANOL
NIOBIUM OXIDES
CATALYTIC EFFECTS
ABSORPTION SPECTROSCOPY
CATALYST SUPPORTS
CHEMICAL PREPARATION
EXPERIMENTAL DATA
FINE STRUCTURE
FOURIER ANALYSIS
INFRARED SPECTRA
INORGANIC ACIDS
LEWIS ACIDS
SILICON OXIDES
X-RAY DIFFRACTION
X-RAY FLUORESCENCE ANALYSIS
X-RAY SPECTROSCOPY
ALCOHOLS
CARBOXYLIC ACIDS
CHALCOGENIDES
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
COHERENT SCATTERING
DATA
DIFFRACTION
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INFORMATION
MONOCARBOXYLIC ACIDS
NIOBIUM COMPOUNDS
NONDESTRUCTIVE ANALYSIS
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
REFRACTORY METAL COMPOUNDS
SCATTERING
SILICON COMPOUNDS
SPECTRA
SPECTROSCOPY
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
X-RAY EMISSION ANALYSIS
400201* - Chemical & Physicochemical Properties