Reaction Kinetics and Catalysis Letters

, Volume 23, Issue 1–2, pp 165–170 | Cite as

Hydrogen thermodesorption from supported bimetallic Ir−Fe/Al2O3 catalysts

  • T. Paryjczak
  • P. Zieliński


A strongly temperature-activated character of hydrogen sorption on 3% Ir−Fe/Al2O3 catalysts, especially for systems with higher iron content has been observed. The amount of hydrogen sorbed on bimetallic catalysts are much smaller than those expected from the interpolation of sorption on monometallic catalysts. Hydrogen thermodesorption spectra of the systems investigated change continually with growing iron contents and do not show any new maxima.


Iridium Bimetallic Catalyst Hydrogen Desorbing High Iron Content Total Metal Content 
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Водородная сорбция на 3% Ir−Fe/Al2O3 катализаторе сильно активируется темперттурой, особенно для систем с высоким содержанием железа. Количество водорода, сорбирующегося на биметаллических катализаторах гораздо меньше количества, ожидаемого на основе правила аддиттивности дия монометаллических катализаторов. Спектры водородной термодесорбции исследованных систем с увеличением содержания железа изменяются непрерывно без новых максимумов.


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Copyright information

© Akadémiai Kiadó 1983

Authors and Affiliations

  • T. Paryjczak
    • 1
  • P. Zieliński
    • 1
  1. 1.Institute of General ChemistryTechnical University of LódzLódzPoland

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