. . . . . "3"^^ . "1890"^^ . "2007-12-01+01:00"^^ . . . "One of the most important open problems of separation selectivity of microporous membranes is knowledge on the extent and mechanism of diffusion flows coupling in confined spaces of microporous membranes. The same lack of information suffer processes in microporous catalysts. Principal goals of the project are (i) finding of experimental and theoretical procedures to distinguish flow coupling via driving forces on one side and via mutual friction of different species on the other (ii) finding of effective guidelines to predict the effect of mutual friction of the species. (iii) measurement of self-diffusion coefficients of components in gaseous binary mixtures contained in macropores. The goals will be atacked by (i) permeation measurements of binary (and corresponding single component) species using a semi-open and standard Wicke-Kallenbach cell (ii) by NMR method (technique of stumulated echo), (iii) solution of the corresponding mathematical model."@en . "2005-01-01+01:00"^^ . . "Jeden z nejd\u016Fle\u017Eit\u011Bj\u0161\u00EDch otev\u0159en\u00FDch probl\u00E9m\u016F separa\u010Dn\u00ED selektivity mikropor\u00E9sn\u00EDch membr\u00E1n je znalost rozsahu a mechanismu sp\u0159a\u017Een\u00ED difusn\u00EDch tok\u016F v omezen\u00FDch prostorech mikropor\u00E9sn\u00EDch membr\u00E1n. Stejn\u00FDm nedostatkem trp\u00ED i procesy v katal\u00FDze na mikropor\u00E9sn\u00EDch katalyz\u00E1torech. Hlavn\u00EDmi c\u00EDli projektu jsou (i) nal\u00E9zt experiment\u00E1ln\u00ED a teoretick\u00E9 postupy, kter\u00E9 by umo\u017Enily rozli\u0161it, jak p\u0159isp\u00EDv\u00E1 k sp\u0159a\u017Een\u00ED difusn\u00EDch tok\u016F vz\u00E1jemn\u00E1 interakce hnac\u00EDl sil p\u0159\u00EDslu\u0161n\u00FDch tok\u016F nebo vz\u00E1jemn\u00E9 t\u0159en\u00ED molekul komponent sm\u011Bsi (ii) nal\u00E9zt n\u00E1vrdy k p\u0159edpov\u011Bdi \u00FA\u010Dinku vz\u00E1jemn\u00E9ho t\u0159en\u00ED molekul separovan\u00E9 sm\u011Bsi (iii) zm\u011B\u0159it samodifusn\u00ED koeficienty slo\u017Eek v bin\u00E1rn\u00EDch plynn\u00FDch sm\u011Bs\u00EDch obsa\u017Een\u00FDch v makrop\u00F3rech (v podlo\u017Ek\u00E1ch mikropor\u00E9sn\u00EDch membr\u00E1n a nebo v transportn\u00EDch p\u00F3rech katalytick\u00FDch pelet). C\u00EDl\u016F bude dosa\u017Eeno n\u00E1sleduj\u00EDc\u00EDmi p\u0159\u00EDstupy: (i) permea\u010Dn\u00EDmi m\u011B\u0159en\u00EDmi bin\u00E1rn\u00EDch (a odpov\u00EDdaj\u00EDc\u00EDch jednoslo\u017Ekov\u00FDch) l\u00E1tek za pou\u017Eit\u00ED polootev\u0159en\u00E9 a standardn\u00ED Wicke-Kallenbachovy cely, (ii) metodou NMR (technika stimulovan\u00E9ho"@cs . "10"^^ . "diffusion; membrane; permeation; adsorption; NMR; generalized Maxwell-Stefan theory; porous material"@en . . . . "10"^^ . "1890"^^ . "Sp\u0159a\u017Een\u00ED difuzn\u00EDch tok\u016F v por\u00E9zn\u00EDch membr\u00E1n\u00E1ch a katalyz\u00E1torech a jejich studium pomoc\u00ED permeace a NMR techniky"@cs . "0"^^ . "Coupling of diffusion flows in porous membranes and catalysts as studied by permeation and NMR techniques"@en . "1"^^ . .