X-ray photoelectron spectroscopy study of various CoMo/Al/sub 2/O/sub 3/ hydrodesulfurization catalysts

Journal Article · Thu Apr 20 00:00:00 EST 1978 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100497a009· OSTI ID:6626051

Declerck-Grimee, R I; Canesson, P; Friedman, R M; Fripiat, J J

Various series of CoMo/Al/sub 2/O/sub 3/ hydrodesulfurization catalysts have been studied by x-ray photoelectron spectroscopy (XPS). After sulfiding, practically all the molybdenum is in the MoS/sub 2/ form, but two cobalt species can be observed. Some of the Co/sup 2 +/ ions are in an oxygen environment (Co-I) probably as a pseudo-aluminate; the remainder appear as sulfided cobalt (Co-F), probably Co/sub 9/S/sub 8/. The catalytic activity can be related to the ratio (Co-F)/Mo. 5 figures, 3 tables.

• Research Organization: Univ. Catholique, Louvain, Belgium
• OSTI ID: 6626051
• Journal Information: J. Phys. Chem.; (United States), Vol. 82:8
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
COBALT
CATALYTIC EFFECTS
CHEMICAL REACTION YIELD
COBALT SULFIDES
HYDROGEN
CHEMICAL REACTIONS
HYDROGEN SULFIDES
MOLYBDENUM
MOLYBDENUM SULFIDES
ALUMINIUM OXIDES
BINDING ENERGY
CATALYST SUPPORTS
CATALYSTS
DESULFURIZATION
HIGH TEMPERATURE
PHASE TRANSFORMATIONS
PHOTOELECTRON SPECTROSCOPY
TEMPERATURE DEPENDENCE
ALUMINIUM COMPOUNDS
CHALCOGENIDES
COBALT COMPOUNDS
CRYOGENIC FLUIDS
ELECTRON SPECTROSCOPY
ELEMENTS
ENERGY
FLUIDS
HYDROGEN COMPOUNDS
MECHANICAL STRUCTURES
METALS
MOLYBDENUM COMPOUNDS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
REFRACTORY METALS
SPECTROSCOPY
SULFIDES
SULFUR COMPOUNDS
SUPPORTS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
YIELDS
400201* - Chemical & Physicochemical Properties