Reaction Kinetics and Catalysis Letters

, Volume 46, Issue 1, pp 115–121 | Cite as

Chemisorptive characterization of Mn2+ cation effects on fused iron-catalysts

  • Yanfei Shen
  • Kaihuei Huang
Article

Abstract

Volumetric and pulse chemisorptions of carbon monoxide (CO) have been developed to characterize effects of Mn2+ cations on an industrial doubly promoted fused iron catalyst. Addition of Mn2+ cations induces an increase in Fe dispersity, Fe electronic density and stability of the Mn2+-containing iron catalyst, where the same increase is observed by XPS and SEM. These effects explain why the activity of Mn2+-containing iron catalysts is improved.

Keywords

Iron Physical Chemistry Catalysis Carbon Monoxide Chemisorption 

Abstract

Волюмометрическую и импульсную хемосорбцию моноокиси углерода использовали для характеристики эффектов катионов Mn2+ на промышленных сплавленных железных катализаторах, дважды нанесенных. Добавка Mn2+ повышает дисперсность Fe, электронную плотность Fe и стабильность железных катализаторов, в то время как одинаковые повышения наблюдаются в XPS и SEM. Объясняют наблюдаемые результаты. Активность катализатора с Mn2+ улучшена.

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Copyright information

© Akadémiai Kiadó 1992

Authors and Affiliations

  • Yanfei Shen
    • 1
  • Kaihuei Huang
    • 1
  1. 1.Department of Chemistry and Institute of Physical ChemistryXiamen UniversityXiamenChina

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