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

M. C. Kung, W. H. Cheng, Harold H Kung

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

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 the selective oxidation and the combustion sites were estimated.

Original languageEnglish
Pages (from-to)1737-1744
Number of pages8
JournalJournal of Physical Chemistry
Volume83
Issue number13
Publication statusPublished - 1979

Fingerprint

Temperature programmed desorption
Iron oxides
iron oxides
butenes
butadiene
desorption
Butadiene
Butenes
Adsorption
Oxidation
oxidation
adsorption
Isomerization
dioxides
isomerization
Desorption
temperature
Hydrocarbons
Carbon Dioxide
carbon dioxide

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Study of iron oxide surface by adsorption and temperature-programmed desorption. / Kung, M. C.; Cheng, W. H.; Kung, Harold H.

In: Journal of Physical Chemistry, Vol. 83, No. 13, 1979, p. 1737-1744.

Research output: Contribution to journalArticle

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