Reaction Kinetics and Catalysis Letters

, Volume 40, Issue 1, pp 101–106 | Cite as

Chemical stability of sulfate ions deposited on iron oxide

  • Doo S. Park
  • Jae S. Lee


Sulfate ions deposited on iron oxide were thermally stable up to ca. 770 K. When pyridine, ammonia, n-butane, and 1-butene were preadsorbed, however, they decomposed to generate gaseous SO2 at much lower temperatures due to the reaction between these molecules and sulfate ions. Implications of these findings in characterization and catalysis of this type of superacid catalyst are discussed.


Oxide Iron Sulfate Ammonia Physical Chemistry 
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Сульфатные ионы, нанесенные на окись железа, термически ставильны при прибл. 770 K. Однако, при предварительной адсорбции пиридина, аммония, н-бутана и 1-бутена выделение SO2 наблюдалось при гораздо низших температурах, вследствие реакции первых с сульфатными ионами. Обсуждается катализ с помощью такого типа суперкислотных катализаторов.


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Copyright information

© Akadémiai Kiadó 1989

Authors and Affiliations

  • Doo S. Park
    • 1
  • Jae S. Lee
    • 1
  1. 1.Department of Chemical EngineeringPohang Institute of Science and TechnologyPohangS. Korea

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