A new layered vanadyl (IV) phosphate with an expanded interlayer
Journal Article
·
· Mater. Res. Bull.; (United States)
At high H/sub 3/PO/sub 4/ : V/sub 2/O/sub 5/ ratios (>4:1), the reaction of V/sub 2/O/sub 5/ with H/sub 3/PO/sub 4/ : EtOH at reflux for extended times gives rise to a material of formulation (VOHPO/sub 4/)/sub 2/ . 2.5H/sub 2/O . EtOH. This material is thermally stable, and has a Stage I layered structure with a distance of 13.58 A between the vanadyl (IV)-phosphate containing planes. Spectroscopic evidence suggests that the EtOH molecule acts as a pillar holding these layers apart and that the stability is due to coordination of the ethanol to in-layer V(IV) atoms. Thermal decomposition of the material gives materials different than those given by the hemihydrate analogue VO(HPO/sub 4/)/sub 2/ . 0.5H/sub 2/O. Such decomposition products may - in part at least - be responsible for many of the irreproducible results found during the preparation of precursors for the V-P-O catalysts adopted in the butane maleic anhydride conversion.
- Research Organization:
- I.T.S.E., Area della Ricerca di Roma del C.N.R., C.P. 10 Monterotondo Staz., 00016 Rome
- OSTI ID:
- 6294201
- Journal Information:
- Mater. Res. Bull.; (United States), Journal Name: Mater. Res. Bull.; (United States) Vol. 22:5; ISSN MRBUA
- Country of Publication:
- United States
- Language:
- English
Similar Records
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On the role of the VO(H{sub 2}PO{sub 4}){sub 2} precursor for n-butane oxidation into maleic anhydride
Journal Article
·
Thu Mar 31 23:00:00 EST 1994
· Chemistry of Materials; (United States)
·
OSTI ID:7267533
New layered vandyl(IV) phosphite as a precursor to vanadyl pyrophosphate catalysts for partial oxidation of n-Butane to maleic anhydride
Journal Article
·
Sun Oct 01 00:00:00 EDT 1995
· Journal of Catalysis
·
OSTI ID:191965
On the role of the VO(H{sub 2}PO{sub 4}){sub 2} precursor for n-butane oxidation into maleic anhydride
Journal Article
·
Sat Jul 01 00:00:00 EDT 1995
· Journal of Catalysis
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OSTI ID:111020
Related Subjects
36 MATERIALS SCIENCE
360601 -- Other Materials-- Preparation & Manufacture
360602* -- Other Materials-- Structure & Phase Studies
ALCOHOLS
ALKANES
BUTANE
CARBOXYLIC ACIDS
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL PREPARATION
CHEMICAL REACTION YIELD
DICARBOXYLIC ACIDS
ETHANOL
HYDRATES
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INORGANIC ACIDS
LAYERS
MALEIC ACID
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PHOSPHATES
PHOSPHORIC ACID
PHOSPHORUS COMPOUNDS
PHYSICAL PROPERTIES
SPECTROSCOPY
STABILITY
STRUCTURAL CHEMICAL ANALYSIS
SYNTHESIS
TEMPERATURE EFFECTS
THERMAL DEGRADATION
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
VANADIUM COMPOUNDS
VANADIUM PHOSPHATES
YIELDS
360601 -- Other Materials-- Preparation & Manufacture
360602* -- Other Materials-- Structure & Phase Studies
ALCOHOLS
ALKANES
BUTANE
CARBOXYLIC ACIDS
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL PREPARATION
CHEMICAL REACTION YIELD
DICARBOXYLIC ACIDS
ETHANOL
HYDRATES
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INORGANIC ACIDS
LAYERS
MALEIC ACID
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PHOSPHATES
PHOSPHORIC ACID
PHOSPHORUS COMPOUNDS
PHYSICAL PROPERTIES
SPECTROSCOPY
STABILITY
STRUCTURAL CHEMICAL ANALYSIS
SYNTHESIS
TEMPERATURE EFFECTS
THERMAL DEGRADATION
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
VANADIUM COMPOUNDS
VANADIUM PHOSPHATES
YIELDS