|
|
|
|
| LEADER |
01000naa a22002652 4500 |
| 001 |
NLM167054716 |
| 003 |
DE-627 |
| 005 |
20231223112112.0 |
| 007 |
tu |
| 008 |
231223s2006 xx ||||| 00| ||eng c |
| 028 |
5 |
2 |
|a pubmed24n0557.xml
|
| 035 |
|
|
|a (DE-627)NLM167054716
|
| 035 |
|
|
|a (NLM)17154590
|
| 040 |
|
|
|a DE-627
|b ger
|c DE-627
|e rakwb
|
| 041 |
|
|
|a eng
|
| 100 |
1 |
|
|a Coasne, Benoit
|e verfasserin
|4 aut
|
| 245 |
1 |
0 |
|a Gas adsorption in mesoporous micelle-templated silicas
|b MCM-41, MCM-48, and SBA-15
|
| 264 |
|
1 |
|c 2006
|
| 336 |
|
|
|a Text
|b txt
|2 rdacontent
|
| 337 |
|
|
|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
|
| 338 |
|
|
|a Band
|b nc
|2 rdacarrier
|
| 500 |
|
|
|a Date Completed 26.01.2007
|
| 500 |
|
|
|a Date Revised 21.11.2013
|
| 500 |
|
|
|a published: Print
|
| 500 |
|
|
|a Citation Status MEDLINE
|
| 520 |
|
|
|a This paper reports a molecular simulation and experimental study on the adsorption and condensation of simple fluids in mesoporous micelle-templated silicas MCM-41, MCM-48, and SBA-15. MCM-41 is described as a regular cylindrical silica nanopore, while SBA-15 is assumed to be made up of cylindrical nanopores that are connected through lateral channels. The 3D-connected topology of MCM-48 is described using a gyroid periodic minimal surface. Argon adsorption at 77 K is calculated for the three materials using Grand Canonical Monte Carlo simulations. Qualitative comparison with experiments for nitrogen adsorption in mesoporous micelle-templated silicas is made. The adsorption isotherm for SBA-15 resembles that for MCM-41. In particular, capillary condensation and evaporation are not affected by the presence of the connecting lateral channels. In contrast, the argon adsorption isotherm for MCM-48 departs from that for MCM-41 having the same pore size. While condensation in MCM-41 is a one-step process, filling of MCM-48 involves two successive jumps in the adsorbed amounts which correspond to condensation in different domains of the porosity. The condensation pressure for MCM-48 is larger than that for MCM-41. We attribute this result to the morphology of the MCM-48 surface (made up of both concave and convex regions) that differs from that for MCM-41 (concave only). Our results suggest that the pore connectivity affects pore filling when the size of the connections is comparable to that of the nanopores
|
| 650 |
|
4 |
|a Comparative Study
|
| 650 |
|
4 |
|a Journal Article
|
| 650 |
|
7 |
|a MCM-41
|2 NLM
|
| 650 |
|
7 |
|a Micelles
|2 NLM
|
| 650 |
|
7 |
|a SBA-15
|2 NLM
|
| 650 |
|
7 |
|a Argon
|2 NLM
|
| 650 |
|
7 |
|a 67XQY1V3KH
|2 NLM
|
| 650 |
|
7 |
|a Silicon Dioxide
|2 NLM
|
| 650 |
|
7 |
|a 7631-86-9
|2 NLM
|
| 700 |
1 |
|
|a Galarneau, Anne
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Di Renzo, Francesco
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Pellenq, Roland J M
|e verfasserin
|4 aut
|
| 773 |
0 |
8 |
|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 22(2006), 26 vom: 19. Dez., Seite 11097-105
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
|
| 773 |
1 |
8 |
|g volume:22
|g year:2006
|g number:26
|g day:19
|g month:12
|g pages:11097-105
|
| 912 |
|
|
|a GBV_USEFLAG_A
|
| 912 |
|
|
|a SYSFLAG_A
|
| 912 |
|
|
|a GBV_NLM
|
| 912 |
|
|
|a GBV_ILN_22
|
| 912 |
|
|
|a GBV_ILN_350
|
| 912 |
|
|
|a GBV_ILN_721
|
| 951 |
|
|
|a AR
|
| 952 |
|
|
|d 22
|j 2006
|e 26
|b 19
|c 12
|h 11097-105
|