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Description
| - Nature and population of Li+ cationic sites in MCM-22 zeolite and its pillared form (MCM-36) were investigated by means of adsorption of CO as a probe molecule. CO stretching frequency and adsorption heat were measured by FTIR spectroscopy and adsorption microcalorimetry. Intrazeolitic carbonyl complexes on Li+ cations in MCM-22 and MCM-36 are characterized by two main vibrational bands at 2,195 and 2,188 cm(-1). Band at higher wavenumbers is ascribed to carbonyls on Li+ ions coordinated only to two oxygen atoms at the intersection of 10-ring channels and interacting with CO molecule by energy around 45 kJ mol(-1). Band at 2,188 cm(-1) was assigned to the carbonyls on Li+ cations located on top of 5 or 6-rings on the channel walls and coordinated to three or four oxygen atoms, interacting with CO molecule by energy 33-36 kJ mol(-1). Effect of pillaring and layered form of zeolite on nature and population of Li+ cationic sites is also discussed, as well as the formation of dicarbonyl complexes.
- Nature and population of Li+ cationic sites in MCM-22 zeolite and its pillared form (MCM-36) were investigated by means of adsorption of CO as a probe molecule. CO stretching frequency and adsorption heat were measured by FTIR spectroscopy and adsorption microcalorimetry. Intrazeolitic carbonyl complexes on Li+ cations in MCM-22 and MCM-36 are characterized by two main vibrational bands at 2,195 and 2,188 cm(-1). Band at higher wavenumbers is ascribed to carbonyls on Li+ ions coordinated only to two oxygen atoms at the intersection of 10-ring channels and interacting with CO molecule by energy around 45 kJ mol(-1). Band at 2,188 cm(-1) was assigned to the carbonyls on Li+ cations located on top of 5 or 6-rings on the channel walls and coordinated to three or four oxygen atoms, interacting with CO molecule by energy 33-36 kJ mol(-1). Effect of pillaring and layered form of zeolite on nature and population of Li+ cationic sites is also discussed, as well as the formation of dicarbonyl complexes. (en)
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Title
| - Coordination of extraframework Li+ cation in the MCM-22 and MCM-36 zeolite: FTIR study of CO adsorbed
- Coordination of extraframework Li+ cation in the MCM-22 and MCM-36 zeolite: FTIR study of CO adsorbed (en)
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skos:prefLabel
| - Coordination of extraframework Li+ cation in the MCM-22 and MCM-36 zeolite: FTIR study of CO adsorbed
- Coordination of extraframework Li+ cation in the MCM-22 and MCM-36 zeolite: FTIR study of CO adsorbed (en)
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skos:notation
| - RIV/00216275:25310/13:39896338!RIV14-GA0-25310___
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
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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/00216275:25310/13:39896338
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - MCM-36; MCM-22; adsorption microcalorimetry; CO; FTIR (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
| - Adsorption - Journal of the International Adsorption Society
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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
| - Bulánek, Roman
- Čejka, Jiří
- Chlubná, Pavla
- Kolářová, Monika
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http://linked.open...ain/vavai/riv/wos
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issn
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number of pages
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http://bibframe.org/vocab/doi
| - 10.1007/s10450-012-9467-2
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http://localhost/t...ganizacniJednotka
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