About: Low-temperature thermal removal of template from high silica ZSM-5. Catalytic effect of zeolitic framework

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Topochemical and catalytic effects of ZSM-5 zeolite framework in the course of thermal degradation of tetrapropyl ammonium (TPA+) template upon calcination under oxidative (air) and inert (nitrogen, N2) atmosphere was analyzed using elemental analysis, X-ray Photoelectron Spectroscopy (XPS) and absorption UV–Vis–NIR spectroscopy. It has been demonstrated that template residues were selectively removed from the interior of the crystals. The concentration of (N (C)-containing template species was less-than-or-equals, slant1 atom per unit cell (u.c.)) by prolonged (24 h) calcination in air already at temperature Tmax = 310 °C (N-containing template species) and Tmax = 330 °C (C-containing template species). Calcination in N2 requires temperatures higher by about 20 °C. The surface region of ZSM-5 crystals contained, however, a substantial amount of template residua (20–30% of N-containing and not, vert, similar60% of C-containing species) even at Tmax = 430 °C. Topochemical and catalytic effects of ZSM-5 zeolite framework in the course of thermal degradation of tetrapropyl ammonium (TPA+) template upon calcination under oxidative (air) and inert (nitrogen, N2) atmosphere was analyzed using elemental analysis, X-ray Photoelectron Spectroscopy (XPS) and absorption UV–Vis–NIR spectroscopy. It has been demonstrated that template residues were selectively removed from the interior of the crystals. The concentration of (N (C)-containing template species was less-than-or-equals, slant1 atom per unit cell (u.c.)) by prolonged (24 h) calcination in air already at temperature Tmax = 310 °C (N-containing template species) and Tmax = 330 °C (C-containing template species). Calcination in N2 requires temperatures higher by about 20 °C. The surface region of ZSM-5 crystals contained, however, a substantial amount of template residua (20–30% of N-containing and not, vert, similar60% of C-containing species) even at Tmax = 430 °C. (en)
Title	Low-temperature thermal removal of template from high silica ZSM-5. Catalytic effect of zeolitic framework Low-temperature thermal removal of template from high silica ZSM-5. Catalytic effect of zeolitic framework (en)
skos:prefLabel	Low-temperature thermal removal of template from high silica ZSM-5. Catalytic effect of zeolitic framework Low-temperature thermal removal of template from high silica ZSM-5. Catalytic effect of zeolitic framework (en)
skos:notation	RIV/61388955:_____/11:00348362!RIV11-GA0-61388955
http://linked.open...avai/predkladatel	Ústav fyzikální chemie J. Heyrovského AV ČR, v.v.i.
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA203/07/1443), Z(AV0Z40400503)
http://linked.open...iv/cisloPeriodika	1-3
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Sazama, Petr Kočiřík, Milan Zikánová, Arlette Hrabánek, Pavel Jirka, Ivan
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyzikální chemie J. Heyrovského AV ČR, v.v.i.
http://linked.open...dnocenehoVysledku	210046
http://linked.open...ai/riv/idVysledku	RIV/61388955:_____/11:00348362
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	TPA+ decomposition; spatial distribution of organics; Al, Fe dopants (en)
http://linked.open.../riv/klicoveSlovo	Al Fe dopants TPA+ decomposition spatial distribution of organics
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[310936AE996D]
http://linked.open...i/riv/nazevZdroje	Microporous and Mesoporous Materials
http://linked.open...in/vavai/riv/obor	CF
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Oriented zeolitic layers for membrane separators and reactors
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	137
http://linked.open...iv/tvurceVysledku	Sazama, Petr Kočiřík, Milan Hrabánek, Pavel Jirka, Ivan Zikánová, Arlette
http://linked.open...ain/vavai/riv/wos	000284557000002
http://linked.open...n/vavai/riv/zamer	Struktura, reaktivita a dynamika molekulárních a biomolekulárních systémů: teorie, experiment, aplikace
issn	1387-1811
number of pages	10 (xsd:int)
is http://linked.open...avai/riv/vysledek of	Low-temperature thermal removal of template from high silica ZSM-5. Catalytic effect of zeolitic framework Low-temperature thermal removal of template from high silica ZSM-5. Catalytic effect of zeolitic framework

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