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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)
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)
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)
skos:notation
  • RIV/61388955:_____/07:00084568!RIV08-AV0-61388955
http://linked.open.../vavai/riv/strany
  • 52;58
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA203/05/0197), P(IAA4040411), R, Z(AV0Z40400503)
http://linked.open...iv/cisloPeriodika
  • 1-3
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 453929
http://linked.open...ai/riv/idVysledku
  • RIV/61388955:_____/07:00084568
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • silica; spherical particles; homogeneous precipitation; nitrogen adsorption (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • NL - Nizozemsko
http://linked.open...ontrolniKodProRIV
  • [C86AAC1C98D1]
http://linked.open...i/riv/nazevZdroje
  • Microporous and Mesoporous Materials
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 104
http://linked.open...iv/tvurceVysledku
  • Zukal, Arnošt
  • Čejka, Jiří
  • Thommes, M.
http://linked.open...n/vavai/riv/zamer
issn
  • 1387-1811
number of pages
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