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Phase separation of a binary liquid mixture in porous media studied by nuclear magnetic resonance cryoporometry
KTH, Superseded Departments, Chemistry.ORCID iD: 0000-0002-0231-3970
2002 (English)In: Journal of Chemical Physics, ISSN 0021-9606, E-ISSN 1089-7690, Vol. 116, no 3, 1072-1076 p.Article in journal (Refereed) Published
Abstract [en]

H-1 nuclear magnetic resonance cryoporometry has been applied to study the low-temperature phase separation of the two components in a binary liquid imbibed in porous glass. The mixture of hexane and nitrobenzene was quenched below both its upper critical temperature and the freezing point of the nitrobenzene. The size distribution of phase-separated liquid domains was observed through their melting point suppression that reveals small droplets of nitrobenzene surrounded by hexane within the pores. If the bottlenecks of the porous network allow, some of these droplets coalesce and thereby completely fill parts of the network.

Place, publisher, year, edition, pages
2002. Vol. 116, no 3, 1072-1076 p.
Keyword [en]
confined geometry, fluid, diffusion, pore, nmr, transitions, dynamics, solids, glass
URN: urn:nbn:se:kth:diva-21207ISI: 000172987100023OAI: diva2:339904
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

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