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Příprava mesoporézního MgO zjednodušenou metodou sol-gel
Gulková, Daniela ; Zdražil, Miroslav ; Šolcová, Olga
The purpose of the present paper is to show that mesoporous HSA MgO in the form of hard particles can be obtained by a simple special version of the conventional route;to explore simplification of sol-gel method; our attemps is named here is "simplified sol/gel method(sss)";to improve delimination and understanding of the HSA MgO texture by comparison of N2 adsorption isotherms of our MgO, MgO from literature an of samples for common support Al2O3.
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Určení transportních charakteristik z protiproudé difuze plynů
Soukup, Karel ; Šolcová, Olga ; Schneider, Petr
Two types of a diffusion cell commonly used for studying of isobaric counter-current diffusion in porous solids are compared. Both cells enable determination of diffusion coefficients and transport characteristics of porous materials. Transport parameters are material constants of the porous solids and can be evaluated through application of a suitable model of porous solids to results of measurements of transport processes withing the porous structure
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Distribuce porů z permporometrických měření
Šolcová, Olga ; Schneider, Petr
Two measurement modes for obtaining wet-curves were suggested and verified. In the figure the obtained wet and dry curves for two catalysts are shown. It was verified that LEPP gives consistent pore size distribution of flow-through pores and, thus, should be tried as the standard texture characteristic suitable for prediction and/or simulation of gas flow in porous media
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