MRI and PGSE NMR Studies of Long-range, Pore-pore Interaction Effects in Gas Adsorption
Abstract
In this work MRI and PGSE NMR have been used to directly study the advanced condensation effect during water adsorption in a macroscopically heterogeneous sol-gel silica pellet. It has been found that capillary condensation will occur at unexpectedly lower pressures in regions of much larger pores that lie in close proximity to smaller pores.
- Publication:
-
Magnetic Resonance in Porous Media
- Pub Date:
- March 2011
- DOI:
- 10.1063/1.3562231
- Bibcode:
- 2011AIPC.1330...53H
- Keywords:
-
- porous materials;
- nuclear magnetic resonance;
- sol-gel preparation;
- condensation;
- 82.33.Ln;
- 83.85.Fg;
- 81.20.Fw;
- 68.03.Fg;
- Reactions in sol gels aerogels porous media;
- NMR/magnetic resonance imaging;
- Sol-gel processing precipitation;
- Evaporation and condensation