Catalytic reduction of NOx over transition-metal-containing MCM-41

Walter Schießer, Hannelore Vinek, Andreas Jentys

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The catalytic properties of Pt, Rh and Co supported on mesoporous molecular sieves with MCM-41-type structure consisting of SiO2 and Al2O3 were studied for the reduction of N2O with propene. Pt supported on siliceous MCM-41 was the most active catalyst, however, significant quantities of undesirable N2O were formed during the reaction. Pt supported on mesoporous Al2O3 and Rh supported on both mesoporous oxides showed a lower activity, but an improved selectivity towards N2 formation, Co supported on MCM-41-type materials had only a low level of activity for the reduction of NO with propene. For Pt supported on MCM-41-type materials only a minor decrease in the activity was observed when water vapor was added into the reactam gas mixture, while on Rh- and Co-containing catalysts the activity strongly decreased.

Original languageEnglish
Pages (from-to)189-194
Number of pages6
JournalCatalysis Letters
Issue number4
StatePublished - 1998
Externally publishedYes


  • Co/MCM-41
  • NO reduction with CH
  • Pt/MCM-41
  • Rh/MCM-41


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