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 |
Fingerprint
Keywords
- Anionic clays
- Ethylbenzene dehydrogenation
- Layered double hydroxides
- Nanostructured catalysts
ASJC Scopus subject areas
- Catalysis
- Materials Science(all)
Cite this
Nanoparticles of iron and vanadium oxides supported on iron substituted LDHs : Synthesis, textural characterization and their catalytic behavior in ethylbenzene dehydrogenation. / Carja, Gabriela; Kameshima, Yoshikazu; Okada, Kiyoshi.
In: Microporous and Mesoporous Materials, Vol. 115, No. 3, 01.11.2008, p. 541-547.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Nanoparticles of iron and vanadium oxides supported on iron substituted LDHs
T2 - Synthesis, textural characterization and their catalytic behavior in ethylbenzene dehydrogenation
AU - Carja, Gabriela
AU - Kameshima, Yoshikazu
AU - Okada, Kiyoshi
PY - 2008/11/1
Y1 - 2008/11/1
N2 - 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.
AB - 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.
KW - Anionic clays
KW - Ethylbenzene dehydrogenation
KW - Layered double hydroxides
KW - Nanostructured catalysts
UR - http://www.scopus.com/inward/record.url?scp=50349085627&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=50349085627&partnerID=8YFLogxK
U2 - 10.1016/j.micromeso.2008.02.032
DO - 10.1016/j.micromeso.2008.02.032
M3 - Article
AN - SCOPUS:50349085627
VL - 115
SP - 541
EP - 547
JO - Microporous and Mesoporous Materials
JF - Microporous and Mesoporous Materials
SN - 1387-1811
IS - 3
ER -