Abstract
Nanostructured catalysts derived from nanoparticles of iron or vanadium oxides supported on the matrices of iron substituted hydrotalcite-like anionic clays (layered double hydroxides, LDHs) have been obtained and tested in the process of ethylbenzene dehydrogenation to styrene. A simple synthesis method based on the LDHs "memory effect" has been used to prepare the new oxides-anionic clay structures. TEM analysis shows that on the typical FeLDH particles (average size equal to 75 nm) smaller nanoparticles are supported; their average size is equal to 7 and 11 nm for Fe/FeLDH and V/FeLDH respectively. XPS analysis indicates the presence of Fe2O3 and V2O3 on the surface of the supported LDHs. N2 adsorption at 77 K reveals that the supported anionic clays have less accentuated mesoporous properties in comparison to the parent FeLDH matrix. The catalytic behavior of the samples is a function of the nature of the supported nanoparticles.
Original language | English |
---|---|
Pages (from-to) | 541-547 |
Number of pages | 7 |
Journal | Microporous and Mesoporous Materials |
Volume | 115 |
Issue number | 3 |
DOIs | |
Publication status | Published - Nov 1 2008 |
Externally published | Yes |
Keywords
- Anionic clays
- Ethylbenzene dehydrogenation
- Layered double hydroxides
- Nanostructured catalysts
ASJC Scopus subject areas
- Chemistry(all)
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials