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Statements

Subject Item
n2:RIV%2F61388955%3A_____%2F11%3A00348362%21RIV11-GA0-61388955
rdf:type
skos:Concept n8:Vysledek
dcterms: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.
dcterms: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
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
skos:notation
RIV/61388955:_____/11:00348362!RIV11-GA0-61388955
n8:predkladatel
n9:ico%3A61388955
n3:aktivita
n12:P n12:Z
n3:aktivity
P(GA203/07/1443), Z(AV0Z40400503)
n3:cisloPeriodika
1-3
n3:dodaniDat
n14:2011
n3:domaciTvurceVysledku
n10:7623070 n10:8844380 n10:8508216 n10:3733343 n10:4931092
n3:druhVysledku
n7:J
n3:duvernostUdaju
n19:S
n3:entitaPredkladatele
n17:predkladatel
n3:idSjednocenehoVysledku
210046
n3:idVysledku
RIV/61388955:_____/11:00348362
n3:jazykVysledku
n15:eng
n3:klicovaSlova
TPA+ decomposition; spatial distribution of organics; Al, Fe dopants
n3:klicoveSlovo
n6:Al n6:Fe%20dopants n6:spatial%20distribution%20of%20organics n6:TPA%2B%20decomposition
n3:kodStatuVydavatele
NL - Nizozemsko
n3:kontrolniKodProRIV
[310936AE996D]
n3:nazevZdroje
Microporous and Mesoporous Materials
n3:obor
n16:CF
n3:pocetDomacichTvurcuVysledku
5
n3:pocetTvurcuVysledku
5
n3:projekt
n18:GA203%2F07%2F1443
n3:rokUplatneniVysledku
n14:2011
n3:svazekPeriodika
137
n3:tvurceVysledku
Hrabánek, Pavel Jirka, Ivan Sazama, Petr Zikánová, Arlette Kočiřík, Milan
n3:wos
000284557000002
n3:zamer
n11:AV0Z40400503
s:issn
1387-1811
s:numberOfPages
10