Study of iron oxide surface by adsorption and temperature-programmed desorption

Journal Article · Thu Jun 28 04:00:00 EDT 1979 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100476a011· OSTI ID:5939109

Kung, M C; Cheng, W H; Kung, H H

Catalytic sites on an iron oxide surface, active in the selective oxidation of butene to butadiene, were studied by adsorption and temperature-programmed desorption of cis-2-butene, butadiene, and carbon dioxide. Three distinct types of sites were identified: isomerization site, selective oxidation site, and combustion site. Results indicate that the three sites are independent of each other. Interaction of hydrocarbons was the weakest with the isomerization site, and strongest with the combustion site. Desorption from the oxidation sites can be identified. By quantitatively determining the desorption products in the adsorption of cis-2-butene and butadiene, concentrations of th selective oxidation and the combustion sites were estimated. 8 figures, 4 tables.

• Research Organization: Northwestern Univ., Evanston, IL
• OSTI ID: 5939109
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 83:13; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102 -- Metals & Alloys-- Structure & Phase Studies
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ADSORPTION
ALKENES
BUTADIENE
BUTENES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CATALYSIS
CATALYSTS
CHALCOGENIDES
DESORPTION
DIENES
HYDROCARBONS
IRON COMPOUNDS
IRON OXIDES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POLYENES
SORPTION
SURFACE PROPERTIES
TRANSITION ELEMENT COMPOUNDS