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Description
| - Vysoce uspořádaná silika MCM-41 byla syntetizována za použití optimalizované směsi cetyltrimetylammonium bromidu a 1-metyl-3-oktylimidazolium chloridu, jež sloužila jako činidlo určující strukturu. Homogenní precipitace tuhého produktu z vodného roztoku metasilikátu sodného a uvedené směsi surfaktantů poskytla materiál s dobře uspořádanými sférickými částicemi. Výsledný produkt byl charakterizován rastrovací a transmisní elektronovou mikroskopií, difrakcí Rentgenova záření a adsorpcí dusíku a argonu; pro výpočet texturních parametrů z adsorpčních dat byla použita vhodná statisticko-termodynamická metoda. Získané výsledky prokázaly, že sférické částice siliky MCM-41 obsahují domény s dokonale uspořádanou hexagonální porézní strukturou. (cs)
- Highly ordered MCM-41 silica was synthesized by using of optimized blend of cetyltrimethylammonium bromide and 1-methyl-3-octylimidazolium chloride as a structure-directing agent. The employment of homogeneous precipitation of the solid product from a water solution of sodium metasilicate and the surfactant blend resulted in the formation of very well ordered spherical particles. The material was characterized by scanning as well transmission electron microscopy, X-ray powder diffraction, and nitrogen and argon adsorption using a proper non-local density functional theory approach for calculations of the textural parameters. The results obtained show that spherical particles are composed of domains of perfectly ordered hexagonal porous structure.
- Highly ordered MCM-41 silica was synthesized by using of optimized blend of cetyltrimethylammonium bromide and 1-methyl-3-octylimidazolium chloride as a structure-directing agent. The employment of homogeneous precipitation of the solid product from a water solution of sodium metasilicate and the surfactant blend resulted in the formation of very well ordered spherical particles. The material was characterized by scanning as well transmission electron microscopy, X-ray powder diffraction, and nitrogen and argon adsorption using a proper non-local density functional theory approach for calculations of the textural parameters. The results obtained show that spherical particles are composed of domains of perfectly ordered hexagonal porous structure. (en)
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Title
| - Synthesis of highly ordered MCM-41 silica with spherical particles
- Synthesis of highly ordered MCM-41 silica with spherical particles (en)
- Syntéza vysoce uspořádané siliky MCM-41 se sférickými částicemi (cs)
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skos:prefLabel
| - Synthesis of highly ordered MCM-41 silica with spherical particles
- Synthesis of highly ordered MCM-41 silica with spherical particles (en)
- Syntéza vysoce uspořádané siliky MCM-41 se sférickými částicemi (cs)
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skos:notation
| - RIV/61388955:_____/07:00084568!RIV08-AV0-61388955
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http://linked.open.../vavai/riv/strany
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
| - P(GA203/05/0197), P(IAA4040411), R, Z(AV0Z40400503)
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/61388955:_____/07:00084568
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - silica; spherical particles; homogeneous precipitation; nitrogen adsorption (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
| - Microporous and Mesoporous Materials
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Zukal, Arnošt
- Čejka, Jiří
- Thommes, M.
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http://linked.open...n/vavai/riv/zamer
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issn
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number of pages
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