Abstract
The present work is devoted to the study of some properties (size, electronic state, redox properties, interaction with matrix) of gold clusters and nanosized particles in Na-Y zeolite modified by iron. Two methods of iron introduction were applied: wet-impregnation and ion-exchange, which result in different structure and reducibility of iron species. Aggregation of iron species and their probable dissolution during gold deposition in samples prepared by wet-impregnation permits to form new Au, Fe and Au-Fe species in contrast to samples prepared by ion-exchange. The strong interaction of Au with Fe species in Au/Fe-imp/NaY changes noticeably a behavior of gold nanoparticles under heating.
| Original language | English |
|---|---|
| Pages (from-to) | 2496-2501 |
| Number of pages | 6 |
| Journal | International Journal of Modern Physics B |
| Volume | 19 |
| Issue number | 15-17 |
| DOIs | |
| Publication status | Published - 10 Jul 2005 |
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Keywords
- Gold catalysts
- HRTEM
- Nanoparticles
- Uv-visible spectroscopy
- XPS
- XRD
- Zeolites
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
- Condensed Matter Physics
- Electronic, Optical and Magnetic Materials
- Statistical and Nonlinear Physics
- Mathematical Physics
Cite this
Influence of Fe introduction method on gold state in NaY zeolite. / Smolentseva, E.; Pestryakov, A.; Bogdanchikova, N.; Simakov, A.; Avalos, M.; Farias, M.; Diaz, J.; Gurin, V.; Tompos, A.
In: International Journal of Modern Physics B, Vol. 19, No. 15-17, 10.07.2005, p. 2496-2501.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Influence of Fe introduction method on gold state in NaY zeolite
AU - Smolentseva, E.
AU - Pestryakov, A.
AU - Bogdanchikova, N.
AU - Simakov, A.
AU - Avalos, M.
AU - Farias, M.
AU - Diaz, J.
AU - Gurin, V.
AU - Tompos, A.
PY - 2005/7/10
Y1 - 2005/7/10
N2 - The present work is devoted to the study of some properties (size, electronic state, redox properties, interaction with matrix) of gold clusters and nanosized particles in Na-Y zeolite modified by iron. Two methods of iron introduction were applied: wet-impregnation and ion-exchange, which result in different structure and reducibility of iron species. Aggregation of iron species and their probable dissolution during gold deposition in samples prepared by wet-impregnation permits to form new Au, Fe and Au-Fe species in contrast to samples prepared by ion-exchange. The strong interaction of Au with Fe species in Au/Fe-imp/NaY changes noticeably a behavior of gold nanoparticles under heating.
AB - The present work is devoted to the study of some properties (size, electronic state, redox properties, interaction with matrix) of gold clusters and nanosized particles in Na-Y zeolite modified by iron. Two methods of iron introduction were applied: wet-impregnation and ion-exchange, which result in different structure and reducibility of iron species. Aggregation of iron species and their probable dissolution during gold deposition in samples prepared by wet-impregnation permits to form new Au, Fe and Au-Fe species in contrast to samples prepared by ion-exchange. The strong interaction of Au with Fe species in Au/Fe-imp/NaY changes noticeably a behavior of gold nanoparticles under heating.
KW - Gold catalysts
KW - HRTEM
KW - Nanoparticles
KW - Uv-visible spectroscopy
KW - XPS
KW - XRD
KW - Zeolites
UR - http://www.scopus.com/inward/record.url?scp=23944473662&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=23944473662&partnerID=8YFLogxK
U2 - 10.1142/S0217979205031213
DO - 10.1142/S0217979205031213
M3 - Article
AN - SCOPUS:23944473662
VL - 19
SP - 2496
EP - 2501
JO - International Journal of Modern Physics B
JF - International Journal of Modern Physics B
SN - 0217-9792
IS - 15-17
ER -