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Description
| - The hydrothermal synthesis of zeolite MCM-58 is investigated with N-benzylquinuclidinium bromide as a structure-directing agent in order to isomorphously substitute aluminium or iron for silicon. Al-MCM-58 was synthesised in a wide range of nSi/nAl ratios (from 19 to 56), and Fe-MCM-58 was successfully prepared in a narrower range of nSi/nFe ratios (from 18 to 36). The obtained products were characterised by XRD, SEM, Al-27 MAS NMR, Si-29 MAS NMR, FTIR, and ESR spectroscopy. Two different calcination procedures, viz. in a stream of nitrogen and air or in a stream of ammonia, were used in order to modify the acid sites in the zeolite.
- The hydrothermal synthesis of zeolite MCM-58 is investigated with N-benzylquinuclidinium bromide as a structure-directing agent in order to isomorphously substitute aluminium or iron for silicon. Al-MCM-58 was synthesised in a wide range of nSi/nAl ratios (from 19 to 56), and Fe-MCM-58 was successfully prepared in a narrower range of nSi/nFe ratios (from 18 to 36). The obtained products were characterised by XRD, SEM, Al-27 MAS NMR, Si-29 MAS NMR, FTIR, and ESR spectroscopy. Two different calcination procedures, viz. in a stream of nitrogen and air or in a stream of ammonia, were used in order to modify the acid sites in the zeolite. (en)
- Hydrotermální syntéza zeolitu MCM-58 byla prováděna s N-benzylquinuclidinem jako strukturně řídícím činidlem. Účelem studie byla isomorfní záměna křemíku za hliník anebo železo. Al-MCM-58 byl připraven v širokém rozmezí nSi/nAl (od 19 do 56). Fe-MCM-58 bylúspěšně připraven v užším rozmezí nSi/nAl (od 18 do 36). Získané produkty byly charakterizovány XRD, SEM, 27Al MAS NMR, 29Si MAS NMR, FTIR a ESR spektroskopií. Dvě různé kalcinační metody viz. V proudu dusíku a vzduchu nebo v proudu amoniaku, byly použity zaúčelem modifikace kyselých míst v zeolitech. FTIR spektroskopie před a po adsorpci d3-acetonitrilu a pyridinu byla použita pro určení koncentracea typu kyselých center v zeolitu. (cs)
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Title
| - Incorporation of aluminium and iron into the zeolite MCM-58
- Incorporation of aluminium and iron into the zeolite MCM-58 (en)
- Inkorporace hliníku a železa do zeolitu MCM-58 (cs)
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skos:prefLabel
| - Incorporation of aluminium and iron into the zeolite MCM-58
- Incorporation of aluminium and iron into the zeolite MCM-58 (en)
- Inkorporace hliníku a železa do zeolitu MCM-58 (cs)
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skos:notation
| - RIV/61388955:_____/05:00000621!RIV06-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(GA203/03/0804), P(KJB4040402), 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:_____/05:00000621
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - acidity; aluminum; kinetics; zeolites (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
| - DE - Spolková republika Německo
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
| - European Journal of Inorganic Chemistry
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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
| - Čejka, Jiří
- Hartmann, M.
- Košová, Gabriela
- Ernst, S.
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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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is http://linked.open...avai/riv/vysledek
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