Back to Search
Start Over
Role of acidity of catalysts on methane combustion over Pd/ZSM-5
- Source :
-
Catalysis Communications . Jun2007, Vol. 8 Issue 6, p880-884. 5p. - Publication Year :
- 2007
-
Abstract
- Abstract: Palladium-based catalysts were prepared by the impregnation (I) and ion-exchange method (E) with ZSM-5 and γ-Al2O3 as support respectively. The high activity of Pd/ZSM-5(I) and Pd-ZSM-5(E) catalysts for methane combustion was observed. The order of activity is consistent with Brønsted acidity of catalysts: Pd/ZSM-5(I)>Pd-ZSM-5(E)>Pd/Al2O3. It is shown by FT-IR that methane adsorbs on acidic bridging hydroxyl groups of ZSM-5-supported Pd catalysts. Symmetric v 1 C–H stretching vibrations of methane shift to low frequency due to the interaction between methane molecules and Brønsted acid sites or Pd2+, indicating that methane molecules can be activated. [Copyright &y& Elsevier]
- Subjects :
- *ALKANES
*METHANE
*BIOGAS
*CATALYSIS
Subjects
Details
- Language :
- English
- ISSN :
- 15667367
- Volume :
- 8
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Catalysis Communications
- Publication Type :
- Academic Journal
- Accession number :
- 24710629
- Full Text :
- https://doi.org/10.1016/j.catcom.2006.08.046