. "The project deals with development of novel methods for the modelling of transport, reactions and transformations in porous materials. Primary application is focused on thin ceramic membranes and supported heterogeneous catalysts for conversion of exhaust gases, but the proposed methodology of digital reconstruction and 3D simulations on micro- and nano-scale is general. Effects of the internal porous structure on the macroscopic properties need to be examined by both mathematical modelling and laboratory experiments. Porous materials, prepared from primary particles with defined shape and size, will be tested on pore-space morphology, transport properties, and catalytic activity. Transformation processes in the porous medium (wetting, impregnation, capillary effects, drying, sintering etc.) will be simulated, as well as reactions and transport in final materials. The proposed approach involves linking of mathematical models at different scales, from molecular dynamics in small pores to overall description by effective parameters (diffusivity, effectiveness factor). The aim is to identify the steps leading to optimisation of the porous structure."@en . "http://www.isvav.cz/projectDetail.do?rowId=GAP106/10/1568"^^ . "2010-01-01+01:00"^^ . . . . . "porous structure catalyst membrane mass transport mathematical modelling"@en . . "Projekt se zab\u00FDv\u00E1 v\u00FDvojem nov\u00FDch metod pro modelov\u00E1n\u00ED transportu, reakc\u00ED a transformac\u00ED v por\u00E9zn\u00EDch materi\u00E1lech. Vyu\u017Eit\u00ED je prvotn\u011B zam\u011B\u0159eno na tenk\u00E9 keramick\u00E9 membr\u00E1ny a heterogenn\u00ED katalyz\u00E1tory pro konverzi v\u00FDfukov\u00FDch plyn\u016F, ale navrhovan\u00E1 metodologie digit\u00E1ln\u00ED rekonstrukce a 3D simulac\u00ED na mikro a nano m\u011B\u0159\u00EDtku je obecn\u00E1. Vliv vnit\u0159n\u00ED por\u00E9zn\u00ED struktury na makroskopick\u00E9 vlastnosti materi\u00E1lu je t\u0159eba zkoumat jak matematick\u00FDm modelov\u00E1n\u00EDm, tak laboratorn\u00EDmi experimenty. Por\u00E9zn\u00ED materi\u00E1ly, p\u0159ipraven\u00E9 z prvotn\u00EDch \u010D\u00E1stic o definovan\u00E9m tvaru a velikosti, budou testov\u00E1ny na morfologii por\u00E9zn\u00EDho prostoru, transportn\u00ED vlastnosti, a katalytickou aktivitu. Simulov\u00E1ny budou transforma\u010Dn\u00ED procesy v por\u00E9zn\u00EDm m\u00E9diu (sm\u00E1\u010Den\u00ED, impregnace, kapil\u00E1rn\u00ED jevy, su\u0161en\u00ED, slinut\u00ED atp.), jako\u017E i reakce a transport ve v\u00FDsledn\u00E9m materi\u00E1lu. Sou\u010D\u00E1st\u00ED navrhovan\u00E9ho p\u0159\u00EDstupu je propojen\u00ED model\u016F na n\u011Bkolika rozm\u011Brov\u00FDch \u00FArovn\u00EDch, od molekul\u00E1rn\u00ED dynamiky v mal\u00FDch p\u00F3rech po celkov\u00FD popis pomoc\u00ED efektivn\u00EDch charakteristik (difuzivita, faktor \u00FA\u010Dinnosti). C\u00EDlem je ur\u010Dit kroky vedouc\u00ED k optimalizaci por\u00E9zn\u00ED struktury." . "0"^^ . "Projekt splnil pl\u00E1novan\u00E9 c\u00EDle, jak pokud jde o p\u0159\u00EDpravu, tak charakerizaci vrstev katalyz\u00E1tor\u016F. Nejv\u00FDznamn\u011Bj\u0161\u00ED je odvozen\u00ED a pou\u017Eit\u00ED matematick\u00FDch 3D model\u016F t\u011Bchto vrstev. Pr\u00E1ce prob\u00EDhaly v \u00FA\u010Deln\u00FDch zahrani\u010Dn\u00EDch spolupracovi\u0161t\u00EDch. Projekt slibuje p\u0159\u00EDnos v oblasti modelov\u00E1n\u00ED technologi\u00ED. Prezentace v\u00FDsledk\u016F je dobr\u00E1, jak pokud jde o po\u010Det, tak o kvalitu \u010Dasopis\u016F."@cs . "Optimization of transport and catalytic properties of porous materials on micro- and nano-scale using 3D digital reconstruction methods"@en . "0"^^ . . "2013-06-12+02:00"^^ . . "1"^^ . "2013-12-31+01:00"^^ . . . "GAP106/10/1568" . . "Optimalizace transportn\u00EDch a katalytick\u00FDch vlastnost\u00ED por\u00E9zn\u00EDch materi\u00E1l\u016F na mikro- a nano-\u00FArovni s vyu\u017Eit\u00EDm 3D digit\u00E1ln\u00ED rekonstrukce" . . . . "12"^^ . . "12"^^ . "2014-07-01+02:00"^^ . . "The project fulfilled planned goals both regarding preparation and characterization of catalyst layers (mainly by electron microscopy). Most important was development of mathematical 3D models of these layers. The works included international collaborations. The results promise progress in technology areas. The result presentation was good regarding number and quality of research journals."@en . . .