Ghent University Academic Bibliography

Advanced

Accessibility and dispersion of vanadyl sites of vanadium silicate-1 nanoparticles deposited in SBA-15

S Zamani, M Chiesa, V Meynen, Y Xiao, B Prélot, J Zajac, Francis Verpoort UGent, P Cool and S Van Doorslaer (2010) JOURNAL OF PHYSICAL CHEMISTRY C. 114(30). p.12966-12975
abstract
Vanadium silicalite-1 (VS-1) nanoparticles dispersed onto the mesoporous walls of SBA-15 silica have characteristics different from those of the full-grown VS-1. In particular, the vanadium-binding site differs extensively. Here, we monitor the local environment of VO(2+) with different electron paramagnetic resonance (EPR) techniques to obtain information about the heterogeneity of the vanadyl sites, the effect of a calcination/reduction cycle, and the subsequent adsorption of (13)CO(2) and NH(3) to the vanadyl sites for both full-grown VS-1 and VS1-SBA15. Furthermore, two-cycle CO(2) and NH(3) adsorption experiments were performed. While the latter showed no chemisorption of CO(2) at 373 K for both materials, clear evidence was found for ligation of CO(2) to vanadyl in full-grown VS-1 by the detection of a strong (13)C hyperfine value. This strong binding was not detected for the vanadyl centers in VS1-SBA15. Chemisorption of NH(3) was detected for all samples both by two-cycle adsorption experiments and by EPR.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
CATALYSTS, ADSORPTION, PROTON ENDOR, HEXAGONAL TEMPLATED SILICA, ENVELOPE MODULATION SPECTROSCOPY, HIERARCHICAL STRUCTURES, MESOPOROUS SILICA, EXCHANGED ZSM-5, MOLECULAR-SIEVE, CARBON-DIOXIDE
journal title
JOURNAL OF PHYSICAL CHEMISTRY C
J. Phys. Chem. C
volume
114
issue
30
pages
12966 - 12975
Web of Science type
Article
Web of Science id
000280360500019
JCR category
MATERIALS SCIENCE, MULTIDISCIPLINARY
JCR impact factor
4.52 (2010)
JCR rank
22/219 (2010)
JCR quartile
1 (2010)
ISSN
1932-7447
DOI
10.1021/jp103794x
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
3060535
handle
http://hdl.handle.net/1854/LU-3060535
date created
2012-11-26 15:16:09
date last changed
2018-01-29 12:12:34
@article{3060535,
  abstract     = {Vanadium silicalite-1 (VS-1) nanoparticles dispersed onto the mesoporous walls of SBA-15 silica have characteristics different from those of the full-grown VS-1. In particular, the vanadium-binding site differs extensively. Here, we monitor the local environment of VO(2+) with different electron paramagnetic resonance (EPR) techniques to obtain information about the heterogeneity of the vanadyl sites, the effect of a calcination/reduction cycle, and the subsequent adsorption of (13)CO(2) and NH(3) to the vanadyl sites for both full-grown VS-1 and VS1-SBA15. Furthermore, two-cycle CO(2) and NH(3) adsorption experiments were performed. While the latter showed no chemisorption of CO(2) at 373 K for both materials, clear evidence was found for ligation of CO(2) to vanadyl in full-grown VS-1 by the detection of a strong (13)C hyperfine value. This strong binding was not detected for the vanadyl centers in VS1-SBA15. Chemisorption of NH(3) was detected for all samples both by two-cycle adsorption experiments and by EPR.},
  author       = {Zamani, S and Chiesa, M and Meynen, V and Xiao, Y and Pr{\'e}lot, B and Zajac, J and Verpoort, Francis and Cool, P and Van Doorslaer, S},
  issn         = {1932-7447},
  journal      = {JOURNAL OF PHYSICAL CHEMISTRY C},
  keyword      = {CATALYSTS,ADSORPTION,PROTON ENDOR,HEXAGONAL TEMPLATED SILICA,ENVELOPE MODULATION SPECTROSCOPY,HIERARCHICAL STRUCTURES,MESOPOROUS SILICA,EXCHANGED ZSM-5,MOLECULAR-SIEVE,CARBON-DIOXIDE},
  language     = {eng},
  number       = {30},
  pages        = {12966--12975},
  title        = {Accessibility and dispersion of vanadyl sites of vanadium silicate-1 nanoparticles deposited in SBA-15},
  url          = {http://dx.doi.org/10.1021/jp103794x},
  volume       = {114},
  year         = {2010},
}

Chicago
Zamani, S, M Chiesa, V Meynen, Y Xiao, B Prélot, J Zajac, Francis Verpoort, P Cool, and S Van Doorslaer. 2010. “Accessibility and Dispersion of Vanadyl Sites of Vanadium Silicate-1 Nanoparticles Deposited in SBA-15.” Journal of Physical Chemistry C 114 (30): 12966–12975.
APA
Zamani, S., Chiesa, M., Meynen, V., Xiao, Y., Prélot, B., Zajac, J., Verpoort, F., et al. (2010). Accessibility and dispersion of vanadyl sites of vanadium silicate-1 nanoparticles deposited in SBA-15. JOURNAL OF PHYSICAL CHEMISTRY C, 114(30), 12966–12975.
Vancouver
1.
Zamani S, Chiesa M, Meynen V, Xiao Y, Prélot B, Zajac J, et al. Accessibility and dispersion of vanadyl sites of vanadium silicate-1 nanoparticles deposited in SBA-15. JOURNAL OF PHYSICAL CHEMISTRY C. 2010;114(30):12966–75.
MLA
Zamani, S, M Chiesa, V Meynen, et al. “Accessibility and Dispersion of Vanadyl Sites of Vanadium Silicate-1 Nanoparticles Deposited in SBA-15.” JOURNAL OF PHYSICAL CHEMISTRY C 114.30 (2010): 12966–12975. Print.