Quantitative Raman characterization of Mo/TiO/sub 2/ catalysts

Journal Article · Wed Jul 01 00:00:00 EDT 1987 · J. Catal.; (United States)

OSTI ID:5217459

Quincy, R B; Houalla, M; Hercules, D M

Two molybdenum species (i.e., Mo interaction species and MoO/sub 3/) are identified and quantitated by Raman spectroscopy for a series of Mo/TiO/sub 2/ catalysts. The Mo interaction species is shown to increase with Mo loading up to 6 wt% MoO/sub 3/ and to level off at higher Mo loadings. MoO/sub 3/ is detected at 7.5 wt% MoO/sub 3//TiO/sub 2/ and shown to increase linearly with further Mo addition. The molybdenum speciation determined from Raman data is shown to correlate with ESCA and X-ray diffraction measurements. 33 references.

• Research Organization: Univ. of Pittsburgh, PA (USA)
• DOE Contract Number: AC02-79ER10485
• OSTI ID: 5217459
• Journal Information: J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 106:1; ISSN JCTLA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
CATALYSTS
CHALCOGENIDES
COHERENT SCATTERING
COMPARATIVE EVALUATIONS
DIFFRACTION
ELECTRON SPECTROSCOPY
ELEMENTS
LASER SPECTROSCOPY
LOADING RATE
METALS
MOLYBDENUM
MOLYBDENUM COMPOUNDS
MOLYBDENUM OXIDES
OXIDES
OXYGEN COMPOUNDS
QUANTITY RATIO
RAMAN SPECTROSCOPY
REFRACTORY METAL COMPOUNDS
SCATTERING
SPECTROSCOPY
SURFACE PROPERTIES
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
X-RAY DIFFRACTION