caa a22 4500 463170229 CHVBK 20180406164811.0 cr unu---uuuuu 170326e20070801xx s 000 0 eng 10.1007/s10450-007-9064-y doi (NATIONALLICENCE)springer-10.1007/s10450-007-9064-y Supercritical fluids in mesopores—new insight using NMR [Elektronische Daten] [Muslim Dvoyashkin, Rustem Valiullin, Jörg Kärger] Supercritical fluids are an essential constitute of modern chemical industry. However, their optimal use in processes involving porous solids is rather limited due to our poor knowledge about their transport properties under confinements. By using the non-invasive pulsed field gradient NMR method, we directly assessed molecular diffusivities of n-pentane in mesopores at sub- and supercritical temperatures. The obtained results ultimately point out that criticality in pores occurs at lower temperatures than in the bulk liquid surrounding the porous solid. The data on molecular diffusivities and pore density may be self-consistently quantified using simple gas-kinetic arguments. Springer Science+Business Media, LLC, 2007 Supercritical state nationallicence Mesopores nationallicence Diffusion nationallicence NMR nationallicence Dvoyashkin Muslim Institut für Physik, Abt. GFP, Universität Leipzig, Linnestraße 5, 04103, Leipzig, Germany aut Valiullin Rustem Institut für Physik, Abt. GFP, Universität Leipzig, Linnestraße 5, 04103, Leipzig, Germany aut Kärger Jörg Institut für Physik, Abt. GFP, Universität Leipzig, Linnestraße 5, 04103, Leipzig, Germany aut Adsorption Springer US; http://www.springer-ny.com 13/3-4(2007-08-01), 197-200 0929-5607 13:3-4<197 2007 13 10450 https://doi.org/10.1007/s10450-007-9064-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10450-007-9064-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Dvoyashkin Muslim Institut für Physik, Abt. GFP, Universität Leipzig, Linnestraße 5, 04103, Leipzig, Germany aut NATIONALLICENCE 700 1- Valiullin Rustem Institut für Physik, Abt. GFP, Universität Leipzig, Linnestraße 5, 04103, Leipzig, Germany aut NATIONALLICENCE 700 1- Kärger Jörg Institut für Physik, Abt. GFP, Universität Leipzig, Linnestraße 5, 04103, Leipzig, Germany aut NATIONALLICENCE 773 0- Adsorption Springer US; http://www.springer-ny.com 13/3-4(2007-08-01), 197-200 0929-5607 13:3-4<197 2007 13 10450 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer