Back to Search
Start Over
Mixed oxides of cerium and manganese as catalysts for total oxidation of ethyl acetate: effect of preparation procedure.
- Source :
- Reaction Kinetics, Mechanisms & Catalysis; Feb2022, Vol. 135 Issue 1, p105-121, 17p
- Publication Year :
- 2022
-
Abstract
- The microstructure of manganese and cerium oxide bi-component materials with different Ce/Mn ratio, obtained by co-precipitation and template assisted hydrothermal techniques, is studied in details by nitrogen physisorption, XRD, SEM, TEM, XPS and Raman spectroscopies and TPR with hydrogen. The catalytic behaviour of the composites in total oxidation of ethyl acetate is investigated. It is found that the close contact between manganese and cerium metal oxide nanoparticles is realized by interface layer of isomorphously substitituted or incorporated in interstitial positions in ceria lattice manganese ions in different oxidative state. The physicochemical data evidence that this interface layer stabilizes a "shell" of finely dispersed CeO<subscript>2</subscript> species on the "core" of MnO<subscript>x</subscript> entities, which plays a decisive role in the catalytic process. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 18785190
- Volume :
- 135
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- Reaction Kinetics, Mechanisms & Catalysis
- Publication Type :
- Academic Journal
- Accession number :
- 155397019
- Full Text :
- https://doi.org/10.1007/s11144-021-02135-0