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Quantification of silanol sites for the most common mesoporous ordered silicas and organosilicas: total versus accessible silanols

Matthias Ide, Mohamad El-Roz, Els De Canck UGent, Aurélie Vicente, Tom Planckaert UGent, Thomas Bogaerts, Isabel Van Driessche UGent, Frederic Lynen UGent, Veronique Van Speybroeck UGent, Frédéric Thybault-Starzyk, et al. (2013) PHYSICAL CHEMISTRY CHEMICAL PHYSICS. 15(2). p.642-650
abstract
IR and NMR spectroscopy were used to determine the silanol content in the most common mesoporous ordered silicas: MCM-41, MCM-48, SBA-15 and SBA-16. In addition, a spray dried MCM-41 and an ethene bridged PMO are investigated. The results are compared with a commercial chromatographic silica (Nucleosil). The complete distribution of surface and bulk silanols, and of isolated, geminal and vicinal silanols for all these materials is presented. A distinction is made between the total silanol number and the reachable or surface silanol content. The latter is determined by controlled reactions with simple silanes. All mesoporous ordered silicas, and especially the thick walled SBA-type materials and the PMO contain a surprisingly high amount of total silanol sites, albeit that up to 90% of these silanols are buried inside the walls and are not reachable for small silanes.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
HYDROXYL-GROUPS, SOLID-STATE NMR, SURFACE-CHEMISTRY, AMORPHOUS SILICA, FUMED SILICA, MCM-41, WATER, SI-29, ADSORPTION, THERMOGRAVIMETRY
journal title
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Phys. Chem. Chem. Phys.
volume
15
issue
2
pages
642 - 650
Web of Science type
Article
Web of Science id
000311963600030
JCR category
PHYSICS, ATOMIC, MOLECULAR & CHEMICAL
JCR impact factor
4.198 (2013)
JCR rank
5/33 (2013)
JCR quartile
1 (2013)
ISSN
1463-9076
DOI
10.1039/C2CP42811C
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
3099351
handle
http://hdl.handle.net/1854/LU-3099351
date created
2013-01-18 11:48:53
date last changed
2018-01-29 12:12:33
@article{3099351,
  abstract     = {IR and NMR spectroscopy were used to determine the silanol content in the most common mesoporous ordered silicas: MCM-41, MCM-48, SBA-15 and SBA-16. In addition, a spray dried MCM-41 and an ethene bridged PMO are investigated. The results are compared with a commercial chromatographic silica (Nucleosil). The complete distribution of surface and bulk silanols, and of isolated, geminal and vicinal silanols for all these materials is presented. A distinction is made between the total silanol number and the reachable or surface silanol content. The latter is determined by controlled reactions with simple silanes. All mesoporous ordered silicas, and especially the thick walled SBA-type materials and the PMO contain a surprisingly high amount of total silanol sites, albeit that up to 90\% of these silanols are buried inside the walls and are not reachable for small silanes.},
  author       = {Ide, Matthias and El-Roz, Mohamad and De Canck, Els and Vicente, Aur{\'e}lie and Planckaert, Tom and Bogaerts, Thomas and Van Driessche, Isabel and Lynen, Frederic and Van Speybroeck, Veronique and Thybault-Starzyk, Fr{\'e}d{\'e}ric and Van Der Voort, Pascal},
  issn         = {1463-9076},
  journal      = {PHYSICAL CHEMISTRY CHEMICAL PHYSICS},
  keyword      = {HYDROXYL-GROUPS,SOLID-STATE NMR,SURFACE-CHEMISTRY,AMORPHOUS SILICA,FUMED SILICA,MCM-41,WATER,SI-29,ADSORPTION,THERMOGRAVIMETRY},
  language     = {eng},
  number       = {2},
  pages        = {642--650},
  title        = {Quantification of silanol sites for the most common mesoporous ordered silicas and organosilicas: total versus accessible silanols},
  url          = {http://dx.doi.org/10.1039/C2CP42811C},
  volume       = {15},
  year         = {2013},
}

Chicago
Ide, Matthias, Mohamad El-Roz, Els De Canck, Aurélie Vicente, Tom Planckaert, Thomas Bogaerts, Isabel Van Driessche, et al. 2013. “Quantification of Silanol Sites for the Most Common Mesoporous Ordered Silicas and Organosilicas: Total Versus Accessible Silanols.” Physical Chemistry Chemical Physics 15 (2): 642–650.
APA
Ide, Matthias, El-Roz, M., De Canck, E., Vicente, A., Planckaert, T., Bogaerts, T., Van Driessche, I., et al. (2013). Quantification of silanol sites for the most common mesoporous ordered silicas and organosilicas: total versus accessible silanols. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 15(2), 642–650.
Vancouver
1.
Ide M, El-Roz M, De Canck E, Vicente A, Planckaert T, Bogaerts T, et al. Quantification of silanol sites for the most common mesoporous ordered silicas and organosilicas: total versus accessible silanols. PHYSICAL CHEMISTRY CHEMICAL PHYSICS. 2013;15(2):642–50.
MLA
Ide, Matthias, Mohamad El-Roz, Els De Canck, et al. “Quantification of Silanol Sites for the Most Common Mesoporous Ordered Silicas and Organosilicas: Total Versus Accessible Silanols.” PHYSICAL CHEMISTRY CHEMICAL PHYSICS 15.2 (2013): 642–650. Print.