Nature of active sites in the oxidative coupling of methane to ethane over Li/MgO catalysts

Journal Article · Thu Jul 01 04:00:00 EDT 1993 · Journal of Vacuum Science and Technology, A (Vacuum, Surfaces and Films); (United States)

DOI:https://doi.org/10.1116/1.578388· OSTI ID:6236759

Wu, M; Truong, C M; Coulter, K; Goodman, D W ^[1]

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1. Department of Chemistry, Texas A M University, College Station, Texas 77843-3255 (United States)

The partial oxidation of methane to ethane over a model Li/MgO catalyst has been studied using combined surface science techniques/elevated pressure kinetic measurements. The results indicate that [Li[sup +]O[sup [minus]]] centers are not likely directly involved in the methane activation step. Rather, addition of lithium promotes the production of F centers which are considered to be responsible for this key step in the methane coupling reaction.

• OSTI ID: 6236759
• Journal Information: Journal of Vacuum Science and Technology, A (Vacuum, Surfaces and Films); (United States), Journal Name: Journal of Vacuum Science and Technology, A (Vacuum, Surfaces and Films); (United States) Vol. 11:4; ISSN 0734-2101; ISSN JVTAD6
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKALINE EARTH METAL COMPOUNDS
ALKANES
ALLOYS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COLOR CENTERS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
ETHANE
F CENTERS
FILMS
HYDROCARBONS
KINETICS
LITHIUM ADDITIONS
LITHIUM ALLOYS
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
METHANE
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
POINT DEFECTS
REACTION KINETICS
SYNTHESIS
THIN FILMS
ULTRAHIGH VACUUM
VACANCIES